Match the graph to one of the polar equations.
A. r = -4 sin ?
B. r = -4 cos ?
C. r = -2
D. r sin ? = -2
Answer: D
Mathematics
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Mathematics
Solve the sales tax problem.A coat costs $46, plus $4.14 in sales tax. What is the tax rate?
A. 0.083% B. 9% C. 0.09% D. 0.91%
Mathematics
Write as a decimal.770%
A. 77 B. 0.77 C. 7.7 D. 7.71
Mathematics
Solve the problem. Round to the nearest dollar or tenth of a percent when necessary.A store sells an item for $460 each. If this is a 68.9% markup on the selling price, find the equivalent markup percent on cost.
A. 221.5% B. 40.8% C. 131.2% D. 460%
Mathematics