Find the opposite of the number.-85
A. -85
B. - 
C. 
D. 85
Answer: D
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Find the product.
2
A. x2 + 
x + 
B. x2 + 
x + 
C. x2 + 
x + 
D. x2 + 
Solve the problem.The number of reports of a certain virus has increased exponentially since year 0. The number of cases can be approximated using the function 
where t is the number of years since year 0. Estimate the number of cases in year 40.
A. 333 cases B. 167 cases C. 125 cases D. 160 cases
Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
f(x) = 10 - 2 log5 x
A. {3125}; (3125, ?); (-?, 3125] B. {3125}; (3125, ?); (0, 3125] C. {3125}; (0, 3125); [3125, ?) D. {3125}; (-?, 3125); [3125, ?)
Solve the problem.The stock market gained 47 points on Tuesday and lost 13 points on Wednesday. Find the difference between these changes.
A. 34 points B. 60 points C. -60 points D. -34 points