Answer:
c)
Step-by-step explanation:
the cost for the book is 7 without counting the pages, but the more pages you have, the more you have to pay, so how much you pay depends on how many pages you have + 7 initially for the book.
Thus, c(cost of the book)= 7 +0.3p
Multiply 2/25 by 4 to get 8/100 which can be turned into 8%
