A5-ounce can of peas cost $0.85. an 11- ounce can of peas cost $2.20. which is the better buy?

First, find out how much one ounce of peas would cost in the first deal. .85/5=.17 per ounce.

One ounce of peas would cost .2 per ounce. The better buy is the 5 ounce of peas for .85.

Let's find what each cost at one pound. Let's name the 5-ounce can can A, and the 11 ounce can can B.
Can A:
0.85÷5
0.17
Can B:
2.20÷11
0.20
So if you compare each price, 0.17< 0.20, which is Can A<Can B
So the 5-ounce can cost less, which is a better buy.

Distance=slopeslope is -2/4which equals-1/2the distance between these two points is -1/2