Simplify the expression. Assume that all variables are positive when they appear.
A. -2x9y15
B. 4x6y10
C. 2x6y10
D. -2x6y10
Answer: D
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Solve the problem.You have 88 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 22 ft, width: 22 ft B. length: 44 ft, width: 44 ft C. length: 44 ft, width: 22 ft D. length: 66 ft, width: 22 ft
Simplify the expression involving rational exponents.(-49)1/2
A. 7 B. -3.5 C. Not a real number D. -7
Solve the problem.Your favorite stock opened the day's trading at $43.22 per share. When trading closed for the day, your stock was priced at $36.95 per share. If you own 80 shares, what was your profit or loss that day?
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