Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln 
A. 
ln
B. ln 
- ln 
C. 
ln x - 
ln y
D. 
ln x - ln y
Answer: C
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Solve the problem.A bird flies from its nest 5 km in the direction 22° north of east, where it stops to rest on a tree. It then flies 8 km in the direction 16° south of west and lands atop a telephone pole. With an xy-coordinate system where the origin is the bird's nest, the x-axis points east, and the y-axis points north, at what point is the tree located?
A. (0.9272, 0.3746) B. (4.636, 1.873) C. (1.873, 4.636) D. (-5.000, -0.04426)
Find the opposite (additive inverse) of the number.
A. 0
B. -28
C. 28
D. - 
Solve the problem.A car rental firm charged $25 per day or portion of a day to rent a car for a period of 1 to 6 days. Days 7 to 9 were then "free," while the charge for days 10 through 15 was again 
per day. Let 
represent the total cost to rent the car for t days, where 
Find the total cost of a rental for 
A. $100 B. $28 C. $75 D. $25
Which is a valid conclusion based on the following information? An equilateral triangle has three congruent sides.
