A heavy rope, 30 ft long and weighing 18 lbs, hangs over the edge of a building 100 ft high. How much work W is done in pulling the rope up 10 ft

What is the inverse of the function f(x) = 2x + 1?

Icould really use some with this question.

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32