As part of a larger piece of work, an artist wishes to cast a solid plaster obelisk in the shape of a tall, slender square pyramid. She builds a form with a square base 27.0 in. on a side with a height of 124 in. into which she pours the plaster. How many gallons of plaster must she mix to fill the form? (1 gal = 231 in.3)

The volume of a cone is 294.38 cm3. The radius of the base is 7.5 cm. Which of the following could be the height of the cone? O 4 cm O 6 cm O 5 cm O 7 cm

A semi-circular baggage compartment in an airplane is 38' long, 15' wide, and 7.5' high. How many cubic feet of cargo will it hold? -

The main floor of a house has the shape shown in the figure. The top of the foundation, which extends 20 inches above ground level, needs a new coating of cement. Parging cement comes in 50-pound bags that cover 50 cubic feet. Each bag costs $19.57 and must be mixed with a $6.52 bottle of bonding liquid. Estimate the cost of materials to recover the foundation. 28 ft. 18 ft. 24 ft. 16 ft. 6 ft. 12 ft.