Solve the problem.A plane starts its descent from a cruising altitude of 33,000 feet. It descends at a rate of 1000 feet per minute. (i) Draw a graph in which the plane's altitude is measured on the vertical axis. (ii) Use the graph to estimate how long it will take for the plane to reach an altitude of 3000 feet. 
A. (i)
(ii) About 37 minutes
B. (i)
(ii) About 11 minutes
C. (i)
(ii) About 30 minutes
D. (i)
(ii) About 26 minutes
Answer: C
Mathematics
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