Find the domain.f(x) = 
A. {x|x ? 20} or [20, ?)
B. {x|x ? 0} or [0, ?)
C. All real numbers or (-?, ?)
D. {x|x ? -20} or [-20, ?)
Answer: A
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Solve the problem. Assume that simple interest is being calculated in each case. Round to the nearest cent.Chris Owens opened a computer service company. To pay for startup costs, Chris Owens borrowed $62,000 from a bank at 4% for 1 year. Find the interest.
A. $3,100.00 B. $64,480.00 C. $2,480.00 D. $248.00
Find the union.{3, 5, 7, 13} ? {0, 3, 8, 13}
A. {3, 5, 7, 8 13} B. {0, 3, 5, 7, 8, 13} C. {0, 3, 5, 7, 13} D. {3, 13}
Simplify the expression. Assume that all variables represent positive real numbers.815/4
A. 6561 B. 19,683 C. 243 D. 2187
Solve the problem.Williamston Daily is a new daily newspaper. When they first started printing three years ago they had 6,000 home delivery subscribers. The number of subscribers increases by 70 every month. Write a linear model that represents the number of subscribers, B, for the number of months, n, the paper has been printed.
A. B = 210n + 6,000 B. B = 70n + 6,000 C. B = 70n + 3 D. B = 6,000n + 70