100 points please help

Acaterpillar started at point (−2.5, −5.5) on a coordinate plane. she crawled in a straight line through the origin to point (45, y). what is y?

Solve |2x - 5| = 4 if anyone could , that would be great

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.