Round 837,520 to the ten-thousands place.
A) 83,752
B) 840,000
C) 837,500
D) 800,000
E) 838,000
B) 840,000
Mathematics
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Provide an appropriate response.How many real square roots does any positive number have?
A. Two B. It depends on the number C. One D. None
Mathematics
The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 
A. r = 4 + 2 cos ? B. r = 4 + 2 sin ? C. r = 2 + 4 sin ? D. r = 2 + 4 cos ?
Mathematics
Write an expression that gives all solutions to the equation.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the problem.A store buys jackets for $500 and sells them for $645. What is the markup rate?
A. 29% B. 77.5% C. 22.5% D. 71%
Mathematics