Solve the problem.A driver wants to gauge the fuel efficiency of her vehicle at speeds of 30 mph and above. She notices that traveling at an average speed of 30 mph results in a rating of 29 mpg, whereas, at an average speed of 40 mph, her car rates  Find an equation to model the gas mileage, m, as a function of average speed s mph.

A. m = + 16
B. m = - + 16
C. m = - + 74
D. m = + 74


Answer: C

Mathematics

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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve  - 3 ? x ? 3, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?

A. 13 B. 10 C. 3 D. 5

Mathematics

Determine whether the set is finite or infinite.The set of natural numbers less than 1

A. Finite B. Infinite

Mathematics

Solve the systems of equations using the addition method.

A. (5, 1) B. (1, 5) C. All ordered pairs along 2x - y = 9 D. No solution

Mathematics

Perform the indicated operation and round as indicated.8.325 ÷ 7.6 hundredths

A. 0.16 B. 1.60 C. 1.10 D. 0.11

Mathematics