To decrease an amount by 60% what single multiplier would you use

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?

Which equation can be solved to find one of the missing side lengths in the triangle? cos(60o) = cos(60o) = cos(60o) = cos(60o) = mark this and return