Solve the problem.A woman invested $2000 at 7% (or 0.07) for 8 years. How much did she have in her account at the end of 8 years? 
A. $112
B. $3120
C. $1120
D. $2240
Answer: B
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Solve the problem.The polar equation of the path of a moon of a planet is 
, where r is measured in miles. Find the rectangular equation of the path of this moon. The path is an ellipse, with the planet at one of the foci.
A. 
3 = 
2
B. x2 + y2 = 
2
C. 
2 = 
3
D. x2 + y2 = (3800 - 0.21x)2
Provide an appropriate response.At Wilson High School 33 girls participate in soccer, 37 girls participate in basketball, and 13 girls participate in both soccer and basketball. How many girls participate in either soccer or basketball?
A. 13 B. 70 C. 83 D. 57
Provide an appropriate response. How many successive 10% discounts are necessary to lower the price of an item to below 50% of its original price? Justify your answer.
What will be an ideal response?
Rewrite the rational expression with the indicated denominator.
= 
A. 
B. 
C. 
D. 