1. A plumber charges $50 for a house call in addition to $80 per hour worked. Which equation represents y, the total cost
for x, hours worked?

What could explain what happened when the time was equal to 120 minutes

If 25% of y is 30, what is 60% of y?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .