6. A liquid starts at a temperature of 190 F and cools down in a room held at a constant 65 'F. Afte- minutes of cooling, it is at a temperature of 92 °F. The Fahrenheit temperature, F, can be modeled function of time in minutes, t, by the equation: F(t) = a(b) +c (a) Determine the values of the parameters a, b, and c. Round the value of b to the nearest hundredth. the equation of your final model. Show the work that leads to each of your answers. (b) Algebraically, determine the number of minutes it will take for the temperature to reach 70 °F.R the nearest tenth of a minute.

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