A triangle is equilateral if __ sides are the same length A: At least 2

B: No

C: Only 2

D: All 3

Asphere has a diameter of 10 in. what is the volume of the sphere?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.