Simplify. Assume x can represent any real number.
A. 3 - x
B. 9 - x2
C. x - 3
D. 
Answer: D
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Multiply the polynomials. Express the answer as a single polynomial in standard form.(10y + x)(10y - x)
A. 100y2 + 20xy - x2 B. 100y2 - x2 C. 20y2 - x2 D. 100y2 - 20xy - x2
Determine whether the given viewing rectangle will result in a square screen.
A. Yes B. No
Find the percent using a proportion. Round your answer to the nearest tenth if necessary.93.5 feet is what percent of 5 feet?
A. 1870% B. 18,700% C. 0.5% D. 5.3%
Solve the problem using a system of equations.Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 180 miles in the same time that Dana travels 165 miles. If Chuck's rate of travel is 3 mph more than Dana's, then at what rate does Chuck travel?
A. 33 mph B. 41 mph C. 31 mph D. 36 mph