Solve the problem.By switching service providers, a family's telephone bill decreased from about 
a month to about 
What was the percent of decrease?
A. 15%
B. 7%
C. 16.3%
D. 14%
Answer: D
Mathematics
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Solve the inequality.p2 + 3p - 18 > 0
A. p < -6, p > 3 B. p < -6 C. -6 < p < 3 D. 3 > p
Mathematics
Perform the indicated operation.Add.5n5 + 4n3 + 2
A. 7 + 12n5 - 4n3 B. 4n5 + 13n3 - 2 C. 15n8 D. 7n5 + 12n3 - 4
Mathematics
Solve the special system by elimination. If the system is dependent, write the solution using set-builder notation with the common line expressed in slope-intercept form.
A. {(x, y)|y = -7x + 9}
B. 
C. (0, 0)
D. ?
Mathematics
Find the inverse using composition.f(x) = x4 + 4, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. Not invertible
Mathematics