The manager of Fish Haven wants a program that displays the number of gallons of water a rectangular aquarium holds, given the aquarium’s length, width, and height measurements in inches.

a. Using the chart shown earlier in Figure 4-12 as a guide, enter the input, processing, and output items, as well as the algorithm, in the first column.

b. Desk-check the algorithm twice. For the first desk-check, use 20.5, 10.5, and 12.5 as the length, width, and height measurements. For the second desk-check, use 30, 9, and 14.

c. Enter the C++ instructions in the second column of the chart, and then desk-check the program using the same data used to desk-check the algorithm.