17. [-/1 Points] DETAILS LARCALCET7 15.2.074. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The ceiling of a building has a height above the floor given by z = 30 + x, and one of the walls follows a path modeled by y = x3/2. Find the surface area of the wall if 0 s x S 40. (All measurements are in feet. Round your answer to two decimal places.) ft 2 Need Help? Read It Watch It 18. [-/1 Points] DETAILS LARCALCET7 15.2.079.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the work done by a person weighing 175 pounds walking exactly one revolution up a circular helical staircase of radius 3 feet if the person rises 14 feet. ft . lb Need Help? Read It Watch It Master It