The manager of the ice cream shop noticed that 90% of all club

Question

members brought along a family member who spent an average
of $18 in the shop. The tax on their bill was 5.5%.
a.
What was the total amount spent by the family members in one
year?

Answer 1

a. no way to tell, without knowing how many members in the club, or how many times they went shopping in a year.

All we know is that some people spent about $18*1.055 each. Big deal.

Answer 2

200×.90=180
180×18=3,240