The mathematical model N= 0.4x2 - 36x + 1000 approximates the number of accidents, N, per 50million miles driven, for drivers who are x years old. The formula applies to drivers' ages 15 through 70 inclusive. Determine the number of accidents per 50 million miles driven are there for 20years old drivers O a. 450 Ob. 440 c. 460 O d. 480

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