Question

Kaitlyn buys books from a book club. She calculates the total cost, in

dollars, of each order using the formula 15b + 5. In her formula, b
represents the number of books she orders.
a) What is the total cost of ordering four books?
b) What is the total cost of ordering two books?
c) What is the total cost of ordering one book?

Answer 1

c=what is the total cost of ordering one book..

Explanation:

Given function:

• 15b+5

What this means:

• 15b+5 means that 15+5..
• b=1 for 15+15
• so if the cost of the book is 15 dollars it adds 5 since you brought that book or for other reasons.
• 15+5=1 book and b represents it.

Therefore, b=the total cost of ordering one book..