You bought jeans last week for $55. Today you see that the jeans are on sale for $40. What is the percent decrease of the price?

To which set of numbers does the number –5 belong? select all that apply. integers natural numbers rational numbers real numbers whole numbers

If a is a nonzero real number then the reciprocal of a is

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4