Suppose you scan a 5x7 inch photograph at 120 ppi (points per inch or pixels per inch) with 24-bit
color representation. For the following questions, compute your answers in bytes.
a. How big is the file?
b. If you quantize the full-color mode to use 256 indexed colors, how big is the file?
c. If you quantize the color mode to black and white, how big is the file?