Perform the operation and give the answer in Hindu-Arabic form.  +  

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A. 3111
B. 1131
C. 1311
D. 1113

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Answer: C

Mathematics

Simplify.- -2

A. - 
B. - 
C. - 
D. - 

Find the discount and the sale price.

A. $66.50, $283.50 B. $35.00, $315.00 C. $70.00, $280.00 D. $73.50, $276.50

Simplify the expression. If any variables exist, assume that they are positive. + 8  + 2 

A. 36
B. 10 
C. 11 
D. 37

Identify and graph the conic section. Label the center and/or vertex as appropriate.7y2 - 7x2 = 63

A. circle; center (0, 0)
(-3, 0), (3, 0), (0, -3), (0, 3)

B. hyperbola; center (0, 0);
(0, -9), (0, 9)

C. hyperbola; center (0, 0);
(0, -3), (0, 3)

D. hyperbola; center (0, 0);
(-3, 0), (3, 0)