Determine whether the equation defines y as a function of x. y = 
A. function
B. not a function
Answer: A
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Find the limit.
A. -
B. 101
C. 
D. -101
Use the sinking fund formula to determine the payment needed to reach the accumulated amount. Round the answer to the nearest cent.Annual payments with 3.1% interest compounded annually for 9 years.to accumulate $4400
A. $103.63 B. $382.05 C. $431.35 D. $493.05
Describe the situation with a linear inequality and then solve the inequality.When making a long distance call from a certain pay phone, the first three minutes of a call cost $2.10. After that, each additional minute or portion of a minute of that call costs $0.50. Use an inequality to find the number of minutes one can call long distance for $7.10.
A. at most 13 minutes B. at most 3 minutes C. at most 14 minutes D. at most 10 minutes
Solve.A polygon with n sides has D diagonals, where D is given by the function D(n) = 
. Find the number of sides n if 54 ? D ? 170.
A. {n|13 ? n ? 20} B. {n|10 ? n ? 21} C. {n|12 ? n ? 20} D. {n|11 ? n ? 21}