Solve the problem.A bookcase is to be constructed as shown in the figure below. The height of the bookcase is 2 feet longer than the length of a shelf. If 22 feet of lumber is available for the entire unit (including the shelves, but NOT the back of the bookcase), find the length and height of the unit.

A. length = 4.5 ft; height = 6.5 ft
B. length = 3 ft; height = 5 ft
C. length = 3 ft; height = 6 ft
D. length = 10.0 ft; height = 13.5 ft


Answer: B

Mathematics

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