Multiply.(2m2n)(6m2n - 4mn + 6mn2)
A. 12m3n2 - 8m2n2 + 12m2n3
B. 12m4n - 8m3n + 12m3n2
C. 12m4n2 - 4mn + 6mn2
D. 12m4n2 - 8m3n2 + 12m3n3
Answer: D
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Solve.The price of a jacket was reduced from $168 to $117.60. What was the percent of decrease in the price?
A. 31% B. 32% C. 3% D. 30%
Solve the problem.The area of a rectangular rug is 200 square feet and its perimeter is 60 feet. Find the dimensions of the rug.
A. 11 yd by 19 yd B. 11 yd by 20 yd C. 10 yd by 19 yd D. 10 yd by 20 yd
Find the sum.710.82 + 9.43
A. 720.24 B. 720.25 C. 720.15 D. 720.14
An objective function and a system of linear inequalities representing constraints are given. Graph the system of inequalities representing the constraints. Find the value of the objective function at each corner of the graphed region. Use these values to determine the maximum value of the objective function and the values of x and y for which the maximum occurs.Objective Functionz = 7x + 3yConstraintsx ? 0 0 ? y ? 5 x - y ? 6 x + 2y ? 12
A. maximum: 62; at (8, 2) B. maximum: 42; at (6, 0) C. maximum: 15; at (0, 5) D. maximum: 29; at (2, 5)