I need help please with this question

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

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

For the feasibility region shown below find the maximum value of the function p=3x+2y