Text Explanation

Let's say that Enrique worked for 2 hours and Savannah worked for 3. That means that Savannah made $15 total and Enrique made $20 total. They worked for a combined total of 5 hours, so h = 5. Enrique made $5 more, so d = 5. Now we plug these into each answer choice and see which equals 2, the number of hours for which Enrique worked.

(A)  = 2, so A is probably the answer. We need to check the other answer choices to make sure none of them are equal to 2. 

(B)  = 3, so B is not the answer.

(C) , = 37.5, so C is not the answer. 

(D)  = 4, so D is not the answer.

A is the answer.