Solve the problem.In a sale, the price of a computer is reduced by $111. The sale price is $1509. Find the marked price (original price) and the rate of discount. Round the discount rate to the nearest tenth of a percent if necessary.
A. $1620; 7.4%
B. $1620; 6.9%
C. $1398; 7.9%
D. $1398; 7.4%
Answer: B
Mathematics
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 2 sin 2 B. 2(1 - cos 2) C. 2(1 + sin 2) D. 2 cos 2
Mathematics
Use the fundamental identities to simplify the expression.
A. sin ? B. sec2? C. cos3? D. tan2?
Mathematics
Find the limit, if it exists.
?
?
A. 02 B. - 7 C. ?010 D. 08 E. The limit does not exist
Mathematics
Round as indicated.
to the nearest million
A. 
B. 
C. 
D. 
Mathematics