Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is  = . Do not try to solve for any unknowns.28% of what is 61?

A.  = 
B.  = 
C.  = 
D.  = 


Answer: C

Mathematics

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Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(8, 7)} B. {(8, 6)} C. {(7, 7)} D. no solution; ?

Mathematics

Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are:  set, $147.99;  set, $208.95;  set, $231.99; 27-inch set, $289.97;  set, $519.97. Estimate the approximate number of -4.0px;" /> sets that can be bought for $11,850. A. 180 B. 20 C. 90 D. 80

Mathematics

Select the graph of the polar equation using symmetry, zeros, maximum r-values, and any other additional points. ? ?

A. Symmetric with respect to the polar axis

?


B. Symmetric with respect to the polar axis

?


C. Symmetric with respect to the polar axis

?


D. Symmetric with respect to the polar axis

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E. Symmetric with respect to the polar axis

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Mathematics

Write the quotient in the form a + bi.

A.  
B.  
C.  
D.  

Mathematics