Identify the type of surface represented by the given equation.
+ 
- 
= 1
A. Hyperboloid of two sheets
B. Hyperboloid of one sheet
C. Elliptical cone
D. Ellipsoid
Answer: B
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Solve.Find the union: {-4, -2, 3, 5} ? {3, 5, 7}.
A. {3, 5, 7} B. {-4, -2, 3, 5, 7} C. {-4, -2, 3, 5} D. {3, 5}
Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. The equation 
can be used to approximate the data. Predict the average annual cost in 2005 to the nearest dollar. 
A. $1547 B. $1516 C. $1454 D. $1485
Solve.A woman borrowed $20,000 at 8% interest compounded annually. If the loan was paid off in one lump sum at the end of 5 years, how much did she pay?
A. $28,000.00 B. $29,386.56 C. $21,600.00 D. $9386.56
Convert  figure 1.png)
into a percent.
a. 9.6% b. 24% c. 19.2% d. 16.8% e. 28.8%