Randy wants to save $21 to buy a basketball. He saves $7 each week. Which array represents the number of weeks randy needs to save $21?

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.