How many cubic feet are in 3 cubic yards

Geometry paper. i don't know how to do the rest. questions 5. 8. 9. and 10.

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68