Simplify the expression by combining like terms.-3x - 8x
A. 5x
B. -11x
C. 24x
D. -11 + x
Answer: B
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Solve the given applied problem.A rectangular area of 2600 ft2 is to be fenced off along the bank of a river; no fence is required along the river. If the material for the fence costs $16 per running foot for the two ends and $15 per running foot for the side parallel to the river, what end length results in a cost of $2380.
A. 100 ft B. 52 ft C. 50 ft D. 25 ft
Solve the problem.A rock falls from a tower that is 160 feet high. As it is falling, its height is given by the formula 
How many seconds (in tenths) will it take for the rock to hit the ground (h = 0)?
A. 12.6 sec B. 3.2 sec C. 12 sec D. 1600 sec
Indicate whether the ordered pair is or is not a solution to the given system.
(2, -6)
A. Solution B. Not a solution
Determine the degree of the polynomial.-8x3 - 5x2 - x + 12
A. 6 B. 3 C. -8 D. 5