PLEADSESESESES HELP

(there are two pictures)

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

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start