Solve.42x + 6x2 = 0
A. -6, -7
B. -7
C. 0, -7
D. -21
Answer: C
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Solve.When Milo got promoted at work, he received a 20% pay raise. He now earns 
per year. What was his annual salary before his raise?
A. $6800 B. $34,000 C. $8160 D. $40,800
Find the horizontal asymptote(s), if any, of the graph of the rational function.f(x) = 
A. y = 
B. y = 0
C. y = 4
D. no horizontal asymptote
Provide an appropriate response.What is the first step in a proof by mathematical induction?
A. Show that the statement is true for n = k + 1. B. Show that the statement is true for n = 1. C. Show that the statement is true for n = k. D. Show that, for any positive integer k, k ? n, if the statement is true for n = k, then it is true for n = k + 1.
Use cross multiplication to determine whether the pair of fractions is equivalent.
A. 3510 ? 3240; No B. 8190 ? 486; No C. 3510 = 3510; Yes D. 3240 = 3240; Yes