Solve the problem.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.27 and a car skidded 300 feet, find the speed of the car, to the nearest mile per hour.
A. 49 mph
B. 95 mph
C. 2430 mph
D. 270 mph
Answer: A
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You buy cups for $6.44 each and saucers for $6.46 each. To sell cup and saucer sets, you mark up each item by 5 dollars ($6 for each cup and $6 for each saucer). You give preferred customers a 7% discount. ? A. How much would you charge a preferred customer for 1 cup and saucer set? ? B. Use your answer to part A to write a formula that gives the price P, in dollars, you charge a preferred customer for n cup and saucer sets. ? C. Use functional notation to indicate the price you charge a preferred customer for 25 cup and saucer sets.
What will be an ideal response?
Write the equation in the form y = f(x) by solving for y.11y - 5x3 = 20
A. y = 
B. y = 
C. y = 4 + x3
D. y = 
Factor.42x3 + 18x2 + 49x + 21
A. (7x2 - 7)(6x + 7) B. 42x(7x2 + 3x + 10) C. (6x2 - 7)(7x - 3) D. (6x2 + 7)(7x + 3)
Solve the equation.
= 
A. 
B. 
C. 
D. 