Solve the problem.Suppose y = mx + b is a mathematical model for actual time as a function of estimated time, where y represents actual time and x represents estimated time and m and b are constants. If m = 1.2 and b = -4.8, find y when x is 60 min.

A. 67.2 min
B. 54.24 min
C. 76.8 min
D. 65.76 min


Answer: A

Mathematics

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