1. 2.50/10 = $.25 per ounce
2. We have one dollar
.25 *4 = 1 dollar, so we can multiply by 4 * 1 ounce
4 ounces will cost 1 dollar
3. c = $.25* p
We can also write this as
c = 1.00 (p/4) where p is the number of ounces
c = p/4
4. Using the last equation
c = p/4
where p is the number of ounces and c is the number of dollars the popcorn costs
