This question has two parts. Use the information to answer Part A and Part B.
A camp leader buys a book for each of her campers. She spends $7.50 on each book.
Part A
Which expression can be used to find the amount of money the camp leader spends on b books?
A. 7.50 Xb
ОО
B. 7.50+ b
C. 7.50 - b
D. 7.50+ b
Part B
If the camp leader has 12 campers, how much does she spend on the books? Enter the answer in the box.
$