The more aerodynamic a vehicle is, the less fuel the vehicle’s engine must use to overcome air resistance. To design vehicles that are as fuel efficient as possible, automotive engineers use the formula R =0.00256 $\times D_C \times F_A \times s^2$ where R is the air resistance (in pounds), $D_C$ is the drag coefficient, $F_A$ is the frontal area of the vehicle (in square feet), and s is the speed of the vehicle (in miles per hour). The formula assumes that there is no wind. Find the drag coefficient of a car when the air resistance is 50 pounds, the frontal area is 25 square feet, and the speed of the car is 45 miles per hour.

Solve the inequality given below and Then graph your solution.
-5x - 4 $<$ -1.4 or -2x + 1 $>$ 11

Evaluate the expression for the given values of x and y.
$\frac {4(x-2y)} {x+y}$ when x = 4 and y = -2

The bill for the repair of your car was $390. The cost for parts was$ 215. The cost for labor was $ 35 per hour. How many hours did the repair work take?

Select and perform an operation to answer the question below.
What is the sum of -9 and -6?

Solve the inequality given below and Then graph your solution.
3x + 2 $<$ -10 or 2x - 4 $>$ -4

Rewrite the given below absolute value inequality as a compound inequality.
|2x - 1| $\geq$ 12

Evaluate the expression for the given values of x and y.
$\frac {2x+y} {3y+x}$ when x = 10 and y = 6

The normal body temperature of a dog is 38.6${}^\circ$C. Your dog’s temperature is 101.1${}^\circ$F. Does your dog have a fever? Explain. Use the formula, degrees Fahrenheit =$\frac 9 5$(degrees Celsius) + 32.

Dry ice is solid carbon dioxide. Dry ice does not melt , it changes directly from a solid to a gas. Dry ice changes to a gas at -109.3${}^\circ$F. What is this temperature in degrees Celsius? Use the formula, degrees Fahrenheit =$\frac 9 5$(degrees Celsius) + 32.

Evaluate the expression for the given values of x and y.
$\frac {x+y} {x-y}$ when x = -4 and y = 9

Rewrite the given below absolute value inequality as a compound inequality.
|3x + 2| $<$ 7

Solve the inequality given below and Then graph your solution.
x + 2 $\leq$ 5 or x - 4 $\geq$ 2

Select and perform an operation to answer the question below.
What is the sum of 32 and -7?