Evaluate the expression using the given value of the variables.7x-1y2 for x = -1, y = 2
A. -28
B. - 28
C. - 
D. - 
Answer: B
Mathematics
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Solve the problem.Amy can clean the house in 7 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 9
hours
B. 10
hours
C. 9
hours
D. 3 hours
Mathematics
Find the prime factorization of the number.6
A. 2 ? 4 B. 2 ? 5 C. 2 ? 3 D. 2 + 3
Mathematics
Solve. Round to the nearest thousandth, if necessary.93 - x = 17
A. {1.111} B. {-1.111} C. {3.776} D. {1.711}
Mathematics
Solve the problem.A telephone costs $355. If the sales tax rate is 7%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $21.30, $376.30 B. $248.50, $603.50 C. $28.40, $383.40 D. $24.85, $379.85
Mathematics