(7x^2 - x - 2) - ( -6x^3 + 3)

a. 6x^3 + 7x^2 - x - 5
b. -6x^3 + 7x^2 - x + 1
c. -x^3 - x - 5
d. x^2 - x + 1

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.