Write an equation that expresses the relationship. Use k as the constant of variation.r varies inversely as b.
A. r = kb
B. r = 
C. r = 
D. kr = b
Answer: B
Mathematics
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A. 220° B. 250° C. 20° D. 70°
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Simplify the expression. If any variables exist, assume that they are positive.
+ 
A. 4x
B. 4
C. 
D. 2
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A. 3% B. 30% C. 32% D. 0.32%
Mathematics