Solve.The function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 8.5
B. 7.5
C. 11.33
D. 17
Answer: A
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
A traveling salesman's territory consists of the 5 cities shown on the following mileage chart. The salesman must organize a round trip that starts and ends at Louisville (his hometown) and will pass through each of the other four cities exactly once.Mileage Chart
At an average cost of 25 cents per mile, the cheapest possible trip that starts at Louisville and passes through each of the other cities exactly once would cost
A. $551.00. B. $578.25. C. $606.50. D. $541.75. E. none of these
State the multiplication property illustrated by the given equation.-3(-3 + 4) = -3(-3) + (-3)(4)
A. Commutative B. Associative C. Distributive D. Identity
Identify the set as finite or infinite.{x|x is a person alive now}
A. finite B. infinite