A trip to a science fair: An elementary school is taking a busload of children to a science fair. It costs $130.00 to drive the bus to the fair and back, and the school pays each student’s $2.00...

A trip to a science fair: An elementary school is taking a busload of children to a science fair. It costs $130.00 to drive the bus to the fair and back, and the school pays each student’s $2.00 admission fee.

a. Use a formula to express the total cost C, in dollars, of the science fair trip as a linear function of the number n of children who make the trip.

b. Identify the slope and initial value of C, and explain in practical terms what they mean.

c. Explain in practical terms whatC(5) means, and then calculate that value.

 d. Solve the equation C(n) = 146 for n. Explain what the answer you get represents.