To find the distance between any two real numbers, take the greater number (the one lying farthest to the right on a number line) and subtract the lesser number ( the on lying farthest to the left)
Let x represent the number of song downloads and let y represent the total cost
y=0.95x+70
Try 4.5 inches. You take 18, divide it by four you get 4.5. I divided by 4 because of the 1/4 inch by 1 foot. Minus 2 from 18, you get the next closest dividend of 4 and that's 16. 16 divided by 4 is 4. 2 are left over to make .5. you get 4.5
It represents the first one 3+(-1)
