Factor the difference of two squares.16 - x2
A. (4 + x)2
B. (4 - x)2
C. (4 - x)(4 + x)
D. prime
Answer: C
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Solve the problem.A vendor sells hot dogs and bags of potato chips. A customer buys 5 hot dogs and 5 bags of potato chips for $21.25. Another customer buys 3 hot dogs and 5 bags of potato chips for $16.25. Find the cost of each item.
A. $2.50 for a hot dog; $2.00 for a bag of potato chips B. $1.75 for a hot dog; $2.50 for a bag of potato chips C. $2.75 for a hot dog; $2.00 for a bag of potato chips D. $2.50 for a hot dog; $1.75 for a bag of potato chips
Solve the equation for the unknown quantity x.log10x = 2
A. 121 B. 20 C. 22 D. 100
Solve the problem.Find the salary in 2008 dollars that would be equivalent to a $60,000 salary in 2018. Assume an average annual inflation rate of 1.75% between 2008 and 2018. Round your answer to the nearest cent.
A. $49,220.90 B. $50,762.46 C. $50,443.72 D. $50,942.17 E. $48,911.10
Solve.The area of a rectangular wall in a classroom is 220 square feet. Its length is 8 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 10 ft; length = 18 ft B. width = 10 ft; length = 38 ft C. width = 10 ft; length = 34 ft D. width = 10 ft; length = 22 ft