For 5th graders you have to change the 24% into a decimal as 0.24 then times 250
The second one you have to divide 95 by 250 and it will give you your answer just do the same with each question if their is percent you multiply and if their is numbers of students you divide by 250
Volume (V) of a cylinder is the area of circular base (pi×r^2) times it's length/height (h): h = 20.5 ft diameter (d) = 1 1/5 × h, 1 1/5 = 6/5 = 1.20 d = 1.20 × 20.5 = 24.6 ft radius (r) = 1/2 d = 24.6/2 = 12.3 ft