Find all complex solutions for the equation.x(x + 5)-1 + x(x - 5)-1 = 50(x2 - 25)-1
A. {-5}
B. {25}
C. {5}
D. ?
Answer: D
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Find the limit of the sequence or determine that the limit does not exist.an = 
n
A. e B. does not exist C. e5 D. 1
Solve the problem.A convention manager finds that she has $1500, made up of twenties and fifties. She has a total of 48 bills. How many fifty-dollar bills does the manager have?
A. 30 fifty-dollar bills B. 18 fifty-dollar bills C. 12 fifty-dollar bills D. 48 fifty-dollar bills
Simplify. Do not use negative exponents in your answer.(a-5b-4)(a-4b-7)
A. 
B. 
C. 
D. 
Solve the problem.You have a tax refund of $496.61. You are able to get the tax refund immediately from your tax preparation agency for a finance charge of $49.88. What annual simple interest rate are you paying for this loan assuming the tax refund check would be available in 13 days? Round to the nearest hundredth.
A. 27.81% B. 30.92% C. 309.20% D. 278.14%