(PLEASE HELP ME) A solid plastic ball is a sphere with radius 11 in. How much plastic does it take to make one ball? Use 3.14 for pi.

It takes about___ in>3 of plastic to make one ball.

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

Jared had 3/7 of the minutes on a family phone plan remaining for the month. the plan is shared by 2 people. if divided equally what portion of the minutes remaining on the phone plan would be avalible for each person