* URGENT PLS HELP * Determine whether each equation represent a proportional relationship

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Can someone explain to me how to do