Provide the proper response.Suppose z varies directly as x and inversely as the square of y. If x is doubled and y is tripled, what happens to z?
A. z is multiplied by 
.
B. z is multiplied by 
.
C. z is multiplied by 
.
D. z is multiplied by 6.
Answer: C
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Solve the problem.For an alternating series 
where 
un ? 0, what can be said about the convergence or divergence of the series?
A. The series may or may not converge. B. The series always converges. C. The series always diverges.
Find the missing value. Round time to the nearest period, interest rate to the nearest whole percent per year, and money to the nearest cent.Principal: $6362Compound amount: $9274Interest rate: 
Compounded: semiannuallyTime: 5.5 years
A. 9% B. 6% C. 8% D. 7%
Perform the operations and simplify.
?
?
Assume that no denominators are 0.
?
A. ?
B. 
C. ?
D. ?
Find the difference.a + b, for a = 4 and b = -2
A. -2 B. -6 C. 2 D. 6