Question

Piano lessons cost $15 what expression could be used to find the cost in dollars of 5 lessons

Answer 1

explain how you would round the numbers 33 and 89 to estimate their sum

Answer 2

15*5 could be used to find the cost of dollars of five lessons. You want to find out the total amount of money needed for five piano lessons, so you should write out an expression like 15*5 to help you solve it.
Hope that helped you!