Solve the problem.Two cars leave a city and head in the same direction. After 2 hours, the faster car is 22 miles ahead of the slower car. The slower car has traveled 84 miles. Find the speeds of the two cars.
A. 31 mph and 42 mph
B. 42 mph and 53 mph
C. 110 mph and 121 mph
D. 44 mph and 55 mph
Answer: B
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Find 
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What will be an ideal response?
Solve.An open-top rectangular box has a square base and it will hold 103 cubic centimeters (cc). Each side of the base has length x cm, and the box has a height of y cm. Express the surface area S as a function of the length x of a side of the base.
A. S(x) = 
+ x2
B. S(x) = 
+ x2
C. S(x) = 412 + x2
D. S(x) = 
+ x2
Use the Binomial Theorem to expand the binomial and express the result in simplified form.(x2 - 5y)4
A. x8 - 5x6y + 150x4y2 - 250x2y3 + 625y4 B. x8 - 20x6y + 150x4y2 + 20x2y3 + 625y4 C. x8 - 20x6y + 150x4y2 - 500x2y3 + 625y4 D. x4 - 20x3y + 150x2y2 - 500xy3 + 625y4
Solve.2x3 + 36 ? 5x2 + 21x
A. [-3, ?)
B. [-3, 4]
C. (-?, -3] ? 
D. 
? [4, ?)