Suppose you are buying apples and bananas. The price of apples is $0.40 each and
 the price of bananas is $0.25 each. Which equation models the number of apples and
 bananas you can buy for $2?
 a. 40x + 25y = 200
 b. 40x – 25y = 2
 C. 5x + 8y = 200
 d. 5x + 8y = 2