Perform the indicated operation.(xy)3
A. 3xy
B. x3y
C. x3y3
D. xy3
Answer: C
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Integrate the given expression.
A. - 
- 
+ C
B. - 
- 8
+ C
C. 
- 
+ C
D. 
- 8
- C
Simplify the difference.(7y + 17) - (-5y + 3)
A. 12y + 14 B. -12y - 14 C. 26y D. 12y + 20
In Las Vegas, Nevada, stores charge a 4.6% state sales tax and a 3.65% county sales tax. Yuki is purchasing a handbag priced at $220 before tax. How much sales tax does Yuki pay for her handbag purchase?
A. $18.15 B. $238.15 C. $201.85 D. $24.75
Find the vertex, focus, and directrix of the parabola with the given equation.(x - 1)2 = 20(y + 4)
A. vertex: (1, -4) focus: (1, 1) directrix: y = -9 B. vertex: (-4, 1) focus: (-4, 6) directrix: y = -4 C. vertex: (-1, 4) focus: (-1, 9) directrix: y = -1 D. vertex: (1, -4) focus: (1, -9) directrix: x = 1