Estimate the difference by rounding the number to the nearest ten.
A. 23
B. 20
C. 30
D. 170
Answer: C
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Solve the problem.A rectangular garden measures 20 feet by 40 feet. The landscaping designed a concrete walkway to go around thisrectangular garden. In the diagram below, this concrete walkway is x feet wide. The entire concrete walkway covers 544 square feet in area. What is the width of x of this concrete walkway? 
A. 8 feet B. 2 feet C. 4 feet D. There is not enough information given.
For an election with four candidates (A, B, C, and D) we have the following preference schedule:
Which candidate wins in the pairwise comparison between candidate B and candidate C?
A. Neither - it is a tie. B. B C. C D. Cannot be determined from the information given. E. none of these
Write an equation for the piecewise function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Translate the sentence to an equation using x as the variable. Do not solve the equation.Twenty-four less than a number is equal to the product of five and x.
A. x - 24 = 5 + x B. x - 24 = 5 + x C. 24 - x = 5x D. x - 24 = 5x,