One cubic foot is 12 x 12 x 12= 1728 square inches. 30 x 15 x 13 = 5850 square inches, which would equal 3.385 square feet. These measurements sound like they might be the outside of the microwave, though, you'll have to take measurements from the inside to find the cubic feet available for cooking.
3600
700W, .7 cubic ft
There is not enough information to solve that problem.
7.48 gallons = 1 cubic ft.
That is 27 cubic ft.
475
700W, .7 cubic ft
There is not enough information to solve that problem.
1 cubic ft = 1 ft * 1 ft * 1ft 1 cubic ft = 12 in * 12 in * 12 in 1 cubic ft = 1728 cubic inches
12 ft * 72 ft * 12 ft = 10368 cubic feet.
1.25 cubic feet, inside.
7.48 gallons = 1 cubic ft.
(229 and 1/3) cubic ft.
1,728
That is 187.5 cubic ft.
1 cubic ft of water = 1728 cubic in of water
32 cubic feet
64 cubic feet