The increase from 5 to 8 was by 60%.
Answer: $20
Sandy had 138 dollars to spend on 6 books. After buying them she had 18 dollars. How much did each book cost? 20 dollars.
Answer:
1.
2. 
Step-by-step explanation:
1. (
*
) + (
) = 
Step-by-step explanation:
plus of yhis number and solve it oksy