An office equipment store buys highlighter pens boxes at a wholesale price of $23 each. It then marks up the price by 82%, and sells the highlighter pens boxes What is the amount of the markup? What is the selling
price?

How do you use the elimination method for this question? explain, because i really want to understand!

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.