Find the degree of the polynomial function.f(x) = 3x - x4 + 
A. 4
B. 1
C. -1
D. 3
Answer: A
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Solve the problem.A telephone costs $355. If the sales tax rate is 7%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $21.30, $376.30 B. $248.50, $603.50 C. $28.40, $383.40 D. $24.85, $379.85
Use a proportion to solve the problem.The prize money in a competition will be divided between the 3rd, 2nd, and 1st place winners as 
That is, the second place winner will receive 2 times as much as the third place winner and the first place winner will receive 3 times as much as the third place winner. If the total amount of prize money is 
how should the money be divided among the three winners?
A. 3rd place: $533, 2nd place: $800, 1st place: $1067 B. 3rd place: $400, 2nd place: $800, 1st place: $1200 C. 3rd place: $480, 2nd place: $960, 1st place: $1440 D. 3rd place: $343, 2nd place: $686, 1st place: $1029
For the given functions f and g, find the requested function and state its domain.f(x) = x + 6; g(x) = 7x2Find f + g.
A. (f + g)(x) = -7x2 + x + 6; all real numbers B. (f + g)(x) = 7x2 + x + 6; all real numbers C. (f + g)(x) = 7x2 - x - 6; all real numbers D. (f + g)(x) = 7x2 + x + 6; {x|x ? -6}
Find the real solutions of the equation.x3 + 7x2 - 16x + 18 = 0
A. {1} B. {-9, 9} C. {9} D. {-9}