Find the product. Use the FOIL method.(x + 9y)(x - 3y)
A. x + 6xy - 27y
B. x2 + 6xy - 27y2
C. x2 + 6xy + 6y2
D. x2 + 3xy - 27y2
Answer: B
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Solve the problem.Anne and Nancy use a metal alloy that is 13% copper to make jewelry. How many ounces of an alloy that is 11% copper must be mixed with an alloy that is 16% copper to form 55 ounces of the desired alloy?
A. 27 ounces B. 33 ounces C. 35 ounces D. 22 ounces
Use the graphs to evaluate the expression.(g ? f)(2)y = f(x)y = g(x)
A. 4 B. 5 C. 2 D. 3
Solve the problem.A ball is thrown vertically upward from the top of a building 144 feet tall with an initial velocity of 128 feet per second. The height, s (in feet), of the ball after t seconds is given by 
After how many seconds does the ball strike the ground?
A. 11 sec B. 8 sec C. 145 sec D. 9 sec