Question

1. books a used bookstore sells paperback fiction books in excellent condition for $2.50 and in fair condition for $0.50. write an expression for the cost of buying x excellent - condition paperbacks and f fair - condition paperbacks.

Explanation:

Step1: Calculate cost of excellent - condition books

The cost of each excellent - condition paperback is $2.50 and the number of such books is $x$. So the cost of excellent - condition books is $2.5x$.

Step2: Calculate cost of fair - condition books

The cost of each fair - condition paperback is $0.50 and the number of such books is $f$. So the cost of fair - condition books is $0.5f$.

Step3: Find total cost

The total cost of buying both types of books is the sum of the cost of excellent - condition books and fair - condition books. So the expression is $2.5x + 0.5f$.

Answer:

$2.5x + 0.5f$