The manager of Keystone Tile wants an application that displays the area of a rectangular floor, given its measurements in feet. It should also display the total cost of tiling the floor, given the price per square foot of tile.

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, using your own sets of data.

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.