Fixed plurals in approx units

Approx units had an issue with non stand pluralization, fixed, making them behave like all other units (ex 18 aircraft carrier being displayed as an aircraft carrier"

units.js

@@ -200,37 +200,37 @@ function customaryMass(kg, singular=false) {
 function approxMass(kg, singular=false) {
   if (kg < 4500) {
     let mass = round(kg/1000,2);
-    return (singular || mass == 1 ? "a car" : mass + " cars");
+    return mass + (singular || mass == 1 ? "car" : " cars");
   } else if (kg < 54431) {
     let mass = round(kg/6000,2);
-    return (singular || mass == 1 ? "an elephant" : mass + " elephants");
+    return mass + (singular || mass == 1 ? " elephant" : " elephants");
     //this unit almost never gets used and is mostly redundant, perhaps remove it if units are cleaned up
   } else if (kg < 10000000) {
     let mass = round(kg/54431.1,2);
-    return (singular || mass == 1 ? "a tank" : mass + " tanks");
+    return mass + (singular || mass == 1 ? " tank" : " tanks");
   } else if (kg < 5.2e10) {
     let mass = round(kg/9.7e7,2);
-    return (singular || mass == 1 ? "an aircraft carrier" : mass + " aircraft carriers");
+    return mass + (singular || mass == 1 ? " aircraft carrier" : " aircraft carriers");
   } else if (kg < 1.5e13) {
     let mass = round(kg/5.2e10,2);
-    return (singular || mass == 1 ? "the Great Wall of China" : mass + " Great Wall Of Chinas"); 
+    return mass + (singular || mass == 1 ? " Great Wall of China" : " Great Wall Of Chinas"); 
   } else if (kg < 5e21) {
     let mass = round(kg/1.5373768e15,3);
-    return (singular || mass == 1 ? "New York City" : mass + " New York Cities");
+    return mass + (singular || mass == 1 ? " New York City" : mass + " New York Cities");
     //this figure includes a lot of underlying bedrock, just the city itself is 1.13587210581190e11 but I needed a good figure to fit in this spot
   } else if (kg < 6e23) {
     let mass = round(kg/4.6121304e20,3);
-    return (singular || mass == 1 ? "Australia" : mass + " Australias");
+    return mass +(singular || mass == 1 ? " Australia" : mass + " Australias");
     //this is a napkin math number based on the land area of Australia, 25km of height and rough density of rock
 } else if (kg < 2e27) {
     let mass = round(kg/5.972e24,4);
-    return (singular || mass == 1 ? "the Earth" : mass + " Earths");  
+    return mass + (singular || mass == 1 ? " Earth" : mass + " Earths");  
 } else if (kg < 1.4e39) {
     let mass = round(kg/1.989e30,4);
-    return (singular || mass == 1 ? "the Sun" : mass + " Suns");
+    return mass + (singular || mass == 1 ? " Sun" : mass + " Suns");
   } else {
     let mass = round(kg/1.3923e42,4);
-    return (singular || mass == 1 ? "the Milky Way" : mass + " Milky Ways");
+    return mass + (singular || mass == 1 ? " Milky Way" : mass + " Milky Ways");
   }
 }
 
@@ -373,30 +373,30 @@ function customaryVolume(m3, singular=false) {
 function approxVolume(m3, singular=false) {
   if (m3 < 2/10000) {
     let volume = round(m3*4e5,0);
-    return (singular || volume == 1 ? "a shot" : volume + " shots");
+    return volume + (singular || volume == 1 ? " shot" : " shots");
   } else if (m3 < .1) {
     let volume = round(m3*2254,1);
-    return (singular || volume == 1 ? "a glass" : volume + " glasses");
+    return volume + (singular || volume == 1 ? " glass" : " glasses");
   } else if (m3 < 100) {
     let volume = round(m3*2.64,1);
-    return(singular || volume == 1 ? "a bathtub" : volume + " bathtubs");
+    return volume + (singular || volume == 1 ? " bathtub" : " bathtubs");
   } else if (m3 < 1e5) {
     let volume = round(m3/1000,2);
-    return (singular || volume == 1 ? "an Olympic swimming pool" : volume + " Olympic swimming pools");  
+    return volume + (singular || volume == 1 ? " Olympic swimming pool" : " Olympic swimming pools");  
   } else if (m3 < 1e9) {
       let volume = round(m3/3.2e5,2);
-    return (singular || volume == 1 ? "an oil tanker" : volume + " oil tankers");
+    return volume + (singular || volume == 1 ? " oil tanker" : " oil tankers");
   } else if (m3 < 1e15) {
     let volume = round(m3/1.8919e10,3);
-    return (singular || volume == 1 ? "a Great Salt Lake" : volume + " Great Salt Lakes");
+    return volume + (singular || volume == 1 ? " Great Salt Lake" : " Great Salt Lakes");
   } else if (m3 < 1e20){
       let volume = round(m3/3.547e17, 3);
-      return (singular || volume == 1 ? "an ocean" : volume + " oceans");
+      return volume + (singular || volume == 1 ? " ocean" : " oceans");
   } else if (m3 < 1e25){
     let volume = round(m3/1e21, 3);
-    return (singular || volume == 1 ? "Earth's volume" : volume + " Earths");
+    return volume + (singular || volume == 1 ? "Earth" : " Earths");
   } else {
     let volume = round(m3/1.4e27, 3);
-  return (singular || volume == 1 ? "Sun's volume" : volume + " Suns");
+  return volume + (singular || volume == 1 ? "Sun" : " Suns");
   }
 }