Represent the following expression algebraically: A number, x, decreased by the sum of 2x and 5

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Find the root(s) of f (x) = (x- 6)2(x + 2)2.