Answer:
the missing number is 18
Step-by-step explanation:
What would you do to 7 to get 21? multiply by 3. you would do the same to the 6.
10% of 88 = 8.8
2.5% of 88 = 2.2
2.2 + 8.8 = 11
88 - 11 = 77
Both? or just the westbound?
