14th square number = 196
6th square number = 36
He gave away 9 (20 x (3/7) =9) so 21-9=12
Answer:
1.6 laps per minute
Step-by-step explanation:
Explanation: In terms of number of laps per minute, the answer is 20 laps12.5 minutes=1.6 laps per minute.
Answer:
4 books
Step-by-step explanation:
Answer:
What are the choices?
Step-by-step explanation: