The graph of an ellipse is given. Find the standard form of the equation of the ellipse. 
A. 
+ y2 = 1
B. x2 + 
= 1
C. x2 - 
= 1
D. x2 + 
= 1
Answer: D
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Solve the problem.Roberto invested some money at 6%, and then invested $3000 more than twice this amount at 10%. His total annual income from the two investments was $3160. How much was invested at 10%?
A. $2500 B. $22,000 C. $25,000 D. $9000
Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. 
A. 0.4375 B. 0.4475 C. 0.438 D. 0.3375
Find Pk+1 from the given statement Pk.Pk: 9 + 18 + 27 + . . . + 9k = 
A. Pk+1: 9 + 18 + 27 + . . . + 9k + 9(k + 1) = 
B. Pk+1: 9 + 18 + 27 + . . . + 9k + (9k + 1) = 
C. Pk+1: 9 + 18 + 27 + . . . + 9k + (9k + 1) = 
D. Pk+1: 9 + 18 + 27 + . . . + 9k + 9(k + 1) = 
Multiply. Assume that all variables represent nonnegative real numbers.
A. 5 
+ 14 
+ 3 
B. 5 
- 14 
+ 3 
C. 5 
- 3 
D. 5 
+ 14 
- 3 