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.