Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. 
B. 1
C. 
D. 1
Answer: C
Mathematics
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Reverse the order of integration and then evaluate the integral.
A. ln 5 - 1
B. 
C. ln 5
D. 
Mathematics
Find the perimeter or circumference. Use ? ? 3.14 when needed.
A. 50 yd B. 74 yd C. 312.5 yd D. 75 yd
Mathematics
Find the amount of the sales tax or the tax rate and the total cost. Round money answers to the nearest cent.Cost of item: $280 Tax rate: 3%
A. $5.60, $285.60 B. $84.00, $364.00 C. $8.40, $288.40 D. $11.20, $291.20
Mathematics
Give the equation of the horizontal asymptote, if any, of the function.f(x) = 
A. y = 5 B. y = 8 C. y = 1 D. none
Mathematics