Which arrangement for these numbers is from least to greatest 2/5 5/7 4/9?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Solving algebraic equations 2m+3=11