A. 65 cm^3
b. 78 cm^3
c. 81 cm^3
d. 93 cm^3

Lets get this :)

Volume(big cylinder) = 
2187 = 

729 = 

r = 
r ≈ 15.2 cm (radius of big cylinder)

The ratio of big cylinder to small one is:
 3 : 1

Therefore, the big cylinder is 3 times bigger than the small cylinder

= r
r = 5.1 cm (radius of small cylinder)

V(small cylinder) = 
                            = 81 cm³

Your answer is C. 81 cm³

Iam not sure , but probably 750 or 7.5

58 i think in 5 hours he makes $58