Solve the problem.After retirement, Kelly's company offers her two options for receiving her retirement pension. According the the first plan, she will receive monthly payments from a variable annuity that initially pays 
per month then decreases each month at a rate of 
per month per year. Optionally, she may choose a plan that pays her a fixed amount of 
per month for the rest of her life. The monthly payments for the two plans are illustrated in the graph
below. After how many years does the variable plan pay less per month than the fixed plan?
A. Up to 8 years
B. 8 years
C. 9 years
D. The variable plan always pays less.
Answer: B
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The nth term of a sequence is given. Find the first 4 terms.an = (-1)n-1(9n - 6)
A. 3, -12, 21, -30 B. -3, 12, -21, -30 C. 3, 12, 21, 30 D. 3, -24, 21, -30
Solve the problem.Find the area of the triangle determined by the points P(-3, 6, -4), Q(1, 9, -4), and 
A. 
B. 
C. 
D. 
Complex numbers are used in electronics to describe the current in an electric circuit. Ohm's law relates the current in a circuit, I, in amperes, the voltage of the circuit, E, in volts, and the resistance of the circuit, R, in ohms, by the formula 
Solve the problem using this formula.Find E, the voltage of a circuit, if I = (2 + 3i) amperes and R = (9 + 5i) ohms.
A. (3 + 37i) volts B. (37 + 3i) volts C. (3 - 37i) volts D. (37 - 3i) volts
Find the Cartesian product or cardinal number as requested.n(A × B) = 90n(B) = 10Find n(A).
A. 80 B. 100 C. 10 D. 9