Someone please help explain how I'm supposed to solve these? The next quarter is starting tmr.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14