Find the Cost Per Ounce of a Sunscreen Made from 20

Multiple Choice

Find the cost per ounce of a sunscreen made from 20 oz of a lotion that costs $2.25 per ounce and 50 oz of a lotion that costs $3.55 per ounce.

A) $2.85 per oz
B) $3.18 per oz
C) $3.85 per oz
D) $2.18 per oz
E) $5.18 per oz