Solve proportion for x 3/2x+5 = 1/9x a. 1/5 b. 1/2 c.5/3 d.16/5

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

How do i multiply two digit numbers

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