Your friend works different times on different days. She calculates her average hourly income using the expression 4(79.95 + 5.28)/(2 ⋅ 3.4) + (3 ⋅ 4.5). Which best describes the structure of the expression?
A. sum/product
B.The difference between a product and a sum
C. product/sum
D. product/difference

I don't really understand the question, can someone explain? - ⌓ -
Thanks!