Solve the Problem. -Suppose Y = Mx + B Is a Mathematical Model

Multiple Choice

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 = 3.5 and B = -2.1, what was the estimated time, x, if the actual elapsed time is 102.9 minutes?

A) 30 min
B) 102.9 min
C) 358.05 min
D) 367.5 min