Find the mistake!

1/4(x+12)=2

1/4x=10

x=-40

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.