15x^4y^2-25x^2y^3+45xy/5xy findquotient

What properties allow transformation to be used as a problem solving tool

How many solutions does the nonlinear system of equations graphed bellow have?

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?