Solve the problem.In September 1998 the population of the country of West Goma in millions was modeled by 
At the same time the population of East Goma in millions was modeled by 
In both formulas x is the year, where 
corresponds to September 1998. Assuming these trends continue, estimate the year when the population of West Goma will equal the population of East Goma.
A. 2008
B. 2011
C. 2009
D. 1987
Answer: C
Mathematics
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Find the exact value of the expression or state that it does not exist.cos-1
A. 
B. 
C. - 
D. 
Mathematics
Use the percentage method of withholding to find the federal withholding tax, a 6.2% FICA rate to find the FICA tax, and 1.45% to find the Medicare tax. Then find the net pay for the employee. Assume that the employee has not earned over $110,000 so far this year.
Karen Smith has gross earnings of $5312.15 monthly. She is single and has 2 withholding allowances.
A. $4905.77 B. $4504.93 C. $4098.55 D. $5712.99
Mathematics
Solve the problem.90 violins is what percent of 106 violins? Round to the nearest whole percent.
A. 11% B. 76% C. 1060% D. 85%
Mathematics
Simplify.?-19?
A. 38 B. -19 C. 19 D. 0
Mathematics