X+5+2x-2+90=180. combine like terms and solve like a normal algebra problem to find x. if you need to find the answer for a certain angle, plug in the value you got for x into one of the angle equations
The probability of getting a 2 on the cube is 1/6, because there's 1 two out of the 6 it can land on, and you didn't give us any details on the spinner.
