Solve the problem. Express your answer in simplest form.June wants to work for 13
hours at her part-time job this week. She has already worked 7
hours. How many more hours does she need to work?
A. 5
hr
B. 6
hr
C. 5 hr
D. 4
hr
Answer: A
Mathematics
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Solve the problem.Find the voltage V when the impedance is Z = -4 + 9j and current is I = 8j. (Z = 
)
A. 
- 
j
B. -72 - 32j
C. 72 - 32j
D. 
+ 
j
Mathematics
Perform the indicated operations and simplify. Assume that all variables represent positive real numbers.(-3
)2
A. -45
B. 45
C. 14
D. 9
Mathematics
Determine independence. Answer Yes or No.The table shows the political affiliation of voters in one city and their positions on stronger gun control laws. ?Stronger Gun Control 
Are party affiliation and position on gun control laws independent?
A. Yes B. No
Mathematics
Perform the indicated operation or operations. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 1
Mathematics