Respuesta :
Answer:
Part A: $21 Part B: $30.21
Step-by-step explanation:
Part A: First, just multiply 15 to 40 divided by 100. 15 x 40/100
40/100= 0.4. 15 x 0.4=6. 15+6=$21
Part B: Discount the book by 25% and then add the sales tax which is 6% and then the answer would be $30.21.
HOPE THIS HELPS!!