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. 
Which services are offered at at least 20% of this city's health clubs and at most 45% of the clubs?
A. massage, Pilates, nutritional counseling, and body fat testing
B. Pilates and nutritional counseling
C. Pilates, nutritional counseling, and body fat testing
D. massage, Pilates and nutritional counseling
Answer: B
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Use reference angles to find the exact value of the expression. Do not use a calculator.sin 495°
A. 
B. - 
C. 
D. - 
Add or subtract as indicated and write the result in standard form.1 - (7 - 6i) - (2 - 7i)
A. -8 + 13i B. -9 - 13i C. -9 + 13i D. -8 - 13i
Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 375 seconds with an average speed of 4 feet per second. Find the average speed of the swimmer if it takes 500 seconds to finish the race.
A. 5 ft/sec B. 3 ft/sec C. 2 ft/sec D. 4 ft/sec
Evaluate.
2/3
A. - 
B. 
C. 
D. 