Solve the problem.Use the line graph to determine how many more hours were needed to prepare for Test 4 than for Test 2.
A. 4
B. 3
C. 2
D. 1
Answer: C
Mathematics
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Use the graph to find the vertical asymptotes, if any, of the function. 
A. x = -3, x = 3, x = 0 B. x = -3, x = 3, y = 1 C. x = -3, x = 3, x = 0, y = 1 D. x = -3, x = 3
Mathematics
Find all complex solutions for the equation.
- 
= 0
A. 
B. {-1, 3}
C. 
D. 
Mathematics
Solve the problem.How much pure acid should be mixed with 3 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 12 gal B. 4.5 gal C. 7.5 gal D. 1.5 gal
Mathematics
Evaluate the factorial expression.
A. 10 B. 40 C. 120 D. 20
Mathematics