Find the volume of a sphere with a radius of 10.use pi or 3.14 to round to the nearest hundredth.

this is from khan academy so please help thanks !

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Afootball is throw by a quarterback to a receiver