Evaluate the expression.-
A. ±20
B. -20
C. 20
D. 0
Answer: B
Mathematics
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A. 90.5° B. 89.5° C. -0.5° D. 181°
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Solve the problem.A formula for the focal length of a lens is f = 
. Calculate f (the focal length) for a = 14 cm and 
Round to the nearest tenth.
A. 6.7 cm B. 6.5 cm C. 7.3 cm D. 7.0 cm
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Find the Social Security and Medicare taxes on the gross earnings. Assume a 6.2% FICA rate and a 1.45% Medicare rate. Round to the nearest cent.$699.00
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