Find the percent change and tell whether it is a percent decrease or increase.
Original amount: 30
End amount: 45

It increased by 50%. The original amount was 30 and it went up 15. Half of 30 is 15 so to go up 15 we increased the original amount by 50%

Byou start by adding them all and setting them equal to 180 since that is half of the total degrees in a circle.(2x+8) + (3x-14) + (3x-14) = 1808x-20 = 1808x = 200x = 25