Find the curved surface area of the spheres whose radius r = 3.5cm

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

3/4 = c/36 i need with this fraction proble.