The bar graph shows the percentages of health clubs in a large city that offer the service listed on the left. Use the graph to answer the question. 
Estimate the percentage of health clubs in this city that offer body fat testing.
A. 4%
B. 11%
C. 8%
D. 14%
Answer: C
Mathematics
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Name the conic (horizontal ellipse, vertical hyperbola, and so on) corresponding to the given equation.
+ 
= 1
A. Horizontal ellipse B. Vertical ellipse C. Vertical hyperbola D. Horizontal hyperbola
Mathematics
Solve the given applied problems involving variation.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 175 seconds are required to make a 
enlargement, find the time required for a 
enlargement.
A. 378 s B. 486 s C. 432 s D. 324 s
Mathematics
Multiply. Assume that all variables represent non-negative real numbers.
(
- 
)
A. 
B. 
- 
C. 7
- 7
D. 8
Mathematics
Simplify. Combine like terms if possible.-8n2 - (-2n2)
A. -6n4 B. -6n2 C. -10n2 D. 6n2
Mathematics