The volume of this sphere with radius ris V = 2887. This statement is true: 288r = 38 . What is the value of r for this sphere? Explain how you know.

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Asap! i'm not good math and i'm lost.