Hiroto spends $68 on ebooks and paperback books combined . Each ebook he buys costs $12 . If hiroto buys x e-books and y paperback books, which of the following equations best model's the situation ?

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

d. all of the above

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)