Solve the proportion.
= 
A. 8
B. 200
C. 
D. 80
Answer: A
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Simplify the algebraic expression.5x - 3y - 9x + 9y
A. 6x - 4y B. 2xy C. -4x + 6y D. 5x - 9x - 3y + 9y
Write the numbers in order of increasing size.8.25, 8
, 8.52, 8
A. 8
, 8.52, 8
, 8.25
B. 8.25, 8
, 8.52, 8
C. 8
, 8
, 8.25, 8.52
D. 8.25, 8.52, 8
, 8
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log2
A. 
log2m + 
log2n - 
log2k
B. 5 log2m + 9 log2n - 2 log2k
C. 
log2m + 
log2n - 2 log2k
D. 
log2m ? 
log2n ÷ 2 log2k
Solve the problem.In one state, speeding fines are determined by the formula 
where F is the cost, in dollars, of the fine if a person is caught driving x miles per hour. If the fine comes to $116, how fast was the person driving.
A. 91 miles per hour B. 79 miles per hour C. 83 miles per hour D. 81 miles per hour