Factor, if possible.15 + 8z - 16z2
A. (4z - 3)(4 z - 5)
B. (4z + 3)(4 z - 5)
C. -(4z + 3)(4 z - 5)
D. -(4z - 3)(4 z - 5)
Answer: C
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Multiply and simplify.
? 
A. xy
B. 6xy
C. 6x2y2
D. 6xy2
Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference schedule below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S).
Who is the winner of a sequential runoff?
A. Clark B. Jones C. Jones and Clark tie. D. Smith
Kelsey is setting up the Events Center for a petting zoo. She builds the pens along a long wall. She starts in a corner, making the first pen with two panels and needing two more panels for each additional pen. Build an input-output table for the number of panels needed for 1 to 5 pens. How many panels are needed for 10 pens?
A) 10 panels B) 16 panels C) 20 panels D) 19 panels E) 21 panels
Solve the problem.A vehicle parked on the street that is 4 feet tall casts a shadow 16 feet long. At the same time, a house nearby casts a shadow 64 feet long. Find the height of the house.
A. 16 ft B. 18 ft C. 20 ft D. 8 ft