Aspider has 8 legs, and an ant has 6 legs. how many legs do 7 spiders and 15 ants have together?

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.

Which expression is not a polynomial?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)