Fill in the blank with one of the words or phrases listed below. 
Two angles that have a sum of 180° are called 
angles.
A. supplementary
B. complementary
C. obtuse
D. straight
Answer: A
Mathematics
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Identify the type of surface represented by the given equation.
- 
= 
A.
| Ellipsoid |
B. Parabolic cylinder
C. Paraboloid
D. Hyperbolic paraboloid
Mathematics
Evaluate the expression without using a calculator. 128(-1/7)
A. -2
B. 128
C. -128
D. 
E. 
Mathematics
Solve.Mary borrowed 
to finish college at an interest rate of 
per year. How much interest will Mary need to pay next year?
A. $630 B. $6300 C. $14,630 D. $20,300
Mathematics
Reduce the rational expression to lowest terms.
A. 2
B. 1
C. 
D. 
Mathematics