Solve for the specified variable.RI = kE, for R
A. 
B. R = kEI
C. R = kE - I
D. R = 
Answer: A
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Rewrite the following as indicated.
(Write as a percent.)
A. 15
%
B. 156
%
C. 78
%
D. 1
%
Multiply.-3(-4)(-9)
A. -118 B. 108 C. -8 D. -108
Solve the problem.An electrician has to choose different types of wire for different applications. The size of the diameter of the wire is inversely related to the gauge of the wire. The chart below shows some different gauges of wire and their approximate diameters. Use the chart to answer the question. 
What is the gauge of the wire with a diameter of 
inch?
A. 14 gauge B. 12 gauge C. 10 gauge D. 16 gauge
Solve for the principal.Susan notes that her savings account earned $516.10 in 1 year. If the account earns 4.7% simple interest, then what was her principal?
A. $9882.82 B. $10,980.85 C. $16,471.37 D. $21,961.82