Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.-5x + 6y - z = -8 x + 8y + 5z = 86-8x + y + z = -35
A. {(6, -5, -8)}
B. {(7, 3, 8)}
C. {(6, 5, 8)}
D. {(5, 8, 5)}
Answer: C
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Solve.2x2 + y2 = 35x2 - y2 = 53
A. (2
, -i
), (2
, i
)
B. (-2
, i
), (2
, i
)
C. (-2
, -
), (-2
, 
), (2
, -
), (2
, 
)
D. (-2
, -i
), (-2
, i
), (2
, -i
), (2
, i
)
Solve each problem.The population growth of an animal species is described by 
where t is measured in months. Find the population of this species in an area 6 months after the species is introduced.
A. 240 B. 704 C. 470 D. 74
Use the circle graph to solve the problem.There are 18,000 students attending the local university. The circle graph shows the percentage of those students who attend different sporting events.
What percentage of students do not attend Soccer or Volleyball matches?
A. 57% B. 19% C. 43% D. 24%
Solve the problem.The growth in the population of a certain rodent at a dump site fits the exponential function 
where t is the number of years since 1965. Estimate the population in the year 2000.
A. 104 B. 96 C. 195 D. 192