What is 64 written as a product of the same factor?

1. 4 x 4 x 4 x 4 x 4 x 4
2. 6 x 6 x 6 x 6
3. 6 x 4
4. 6 + 6 + 6 + 6
what one is correct? !

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

How to solve a simultaneous equation involved with fractions?

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)