Question

The school library is buying new books that cost $9 each. Which equation

represents the total cost (t) for any number of books (b)? *
Ot=b-$9
O
t = b + $9
O b = $9t
O
t = $9b​

Answer 1

t = $9b

Explanation:

The total cost is t, and that is equal to 9 dollars for each book bought, so we multiply the amount of books by 9, so 9b, we add the dollar sign and t = $9b.