The surface area of a sphere is 9π cm2. What is the volume? PLEASE HELP PLEASE NO LINKS PLEASE

Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length