Question

Debra earns 52 dollars per week working part-time at a book store. She makes one dollar more for each book that she sells. The amount, A (in dollars),

that Debra eams in a week if she sells b books is given by the following.
A=52+b
How much does Debra earn in a week if she sells 23 books?

Answer 1

$75

Explanation:

Put the number where the variable is and do the arithmetic:

A = 52 +23 = 75

Debra earns $75 in a week that she sells 23 books.

Answer 2

$75.00

Explanation:

We want to find how much she earns, a, when she sells 23 books, b

To find this, we can substitute 23 in for b

a=52+b

a=52+23

Add

a=75

So, if she sells 23 books, she will earn $75.00