Solve the problem.The table lists how financial aid income cutoffs (in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the financial aid cutoff for 1985.
A. $20,250
B. $17,625
C. $33,375
D. $51,750
Answer: C
Mathematics
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Prove the limit statement
(5x - 4) = 21
What will be an ideal response?
Mathematics
Graph the function corresponding to the sequence defined. Use the graph to decide whether the sequence converges or diverges.an = (18 + n)1/n
A. Converges B. Diverges
Mathematics
Use a graphing utility to graph the function and then answer the question.John owns a hotdog stand. He has found that his profit is represented by the equation 
with P being profits and x the number of hotdogs. How many hotdogs must he sell to earn the most profit?
A. 23 hotdogs B. 46 hotdogs C. 28 hotdogs D. 27 hotdogs
Mathematics
Write the expression with positive exponents only. Then simplify, if possible.
A. 25
B. 
C. - 25
D. - 
Mathematics