Solve the problem.The gas mileage, y, of a compact car is related to the speed, x, at which the car is driven between speeds of 40 mph and 90 mph. For example, from the graph we see that the gas mileage for the compact car is 45 miles per gallon if the car is driven at a speed of 
The linear equation y = - 
x + 65 relates gas mileage, y, to the speed of the car, x. Estimate the gas mileage if the compact car is traveling 88 mph.
A. 109 miles per gallon
B. 53 miles per gallon
C. 78 miles per gallon
D. 21 miles per gallon
Answer: D
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Answer the question.In a fraction, what operation does the fraction bar represent?
A. Addition B. Division C. Subtraction D. Multiplication
The side of a cube measures 1.4 m. Find the surface area of the cube.
Solve the problem.A company is introducing a new soft drink and is planning to have 48 advertisements distributed among TV ads, radio ads, and newspaper ads. If the cost of TV ads is 
each, the cost of radio ads is 
each, and the cost of newspaper ads is 
each, how can the ads be distributed among the three types if the company has 
/> to spend for advertising? (Let x denote the number of TV ads, y the number of radio ads, and z the number of newspaper ads. Let z be the parameter.) A. x = 16, y = 32 - z, 0 ? z ? 32 B. x = 32 - z, y = 16, 0 ? z ? 32 C. x = 16, y = z - 32, 0 ? z ? 32 D. x = z - 32, y = 16, 0 ? z ? 32
Solve.
- 5 = 
A. 30 B. 12 C. 15 D. 10