Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.x-2/5 ? x3/5
A. x1/5
B. x6/5
C. x-1/5
D. x5/6
Answer: A
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Solve and graph.-6(3y - 6) < -24y - 6
A. (-7, ?)
B. (-?, -7)
C. (-?, -5]
D. (-?, -7]
Provide an appropriate response.Two pipes drain an oil tank. One pipe releases 50 
more than the other. They release 330 
together. Write an equation and solve to find the drainage rate of each pipe.
What will be an ideal response?
Solve the equation. Use the change of base formula to approximate an exact answer to the nearest hundredth when appropriate.2x = 756
A. x = 378 B. x = log 378 C. x = log 756 D. x = log2756
Solve the problem.A power outage affected all homes and businesses within a 4 mi radius of the power station. If the power station is located 2 mi west and 5 mi north of the center of town, find an equation of the circle consisting of the furthest points from the station affected by the power outage.
A. (x - 2)2 + (y + 5)2 = 16 B. (x + 2)2 + (y + 5)2 = 16 C. (x + 2)2 + (y - 5)2 = 16 D. (x - 2)2 + (y - 5)2 = 16