Simplify the expression. Assume that all variables are positive when they appear.
A. 256
B. -4
C. 4
D. not a real number
Answer: C
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Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.-4x + 2y = 68x - 4y = -12
A. (-24, 12) B. Infinitely many solutions, dependent C. No solution, inconsistent D. (12, -24)
Refer to the following figure. Which points have negative y-coordinates?
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What will be an ideal response?
Write the spreadsheet expression in ordinary algebraic notation. Let cell A1 represent the variable x.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.The number of reports of a certain virus has increased exponentially since 1960. The current number of cases can be approximated using the function 
where t is the number of years since 1960. Estimate the of cases in the year 2000.
A. 131 cases B. 262 cases C. 127 cases D. 98 cases