The length of a rectangle is 7 ft and its width is 3.5 ft. Find the area of the rectangle.
A. 21 ft
B. 24.5 
C. 21 
D. 24.5 ft
Answer: B
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Simplify using properties of exponents.(81x10y4)1/2
A. 
x5y2
B. 6561x20y4
C. 9x5y2
D. 81x5y2
Write the interval in set-builder notation and graph the set on a number line.
A. 
B. 
C. 
D. 
Solve the problem.A travel agent arranged a payment plan for a client. It required a down payment of $250 and 12 monthly payments of $705. What was the total cost of the plan?
A. $8,610 B. $8,560 C. $8,710 D. $8,460
Solve the problem.The perimeter of a rectangle is 56 m. If the width were doubled and the length were increased by 24 m, the perimeter would be 124 m. What are the length and width of the original rectangle?
A. Width: 18 m; length: 10 m B. Width: 10 m; length: 18 m C. Width: 14 m; length: 14 m D. Width: 9 m; length: 14 m