What is the recursive rule for this geometric sequence? 1, 3, 9, 27, enter your answers an=__ ⋅an−1 a1=__

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.

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?