Question

keith earns 41 dollars per week working part - time at a book store. he makes one dollar more for each book that he sells. the amount, a (in dollars), that keith earns in a week if he sells b books is given by the following.
a = 41 + b
how much does keith earn in a week if he sells 36 books?
dollars

Explanation:

Step1: Substitute b=36 into formula

$A = 41 + 36$

Step2: Calculate total earnings

$A = 77$

Answer:

77 dollars