Can someone help with this

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

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )