Solve the problem.A rock climber descends to the floor of a canyon in 9 stages, dropping 400 feet each time. Write the total depth of the canyon as a product of integers and find the depth of the canyon.
A. 9 ? (400) = 2600; 2600 feet deep
B. 9 ? (400) = 360; 360 feet deep
C. 9 ? (-400) = -2700; 2700 feet deep
D. 9 ? (-400) = -3600; 3600 feet deep
Answer: D
Mathematics
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