Translate to an equation and solve.2.1 is what percent of 4?
A. 57.5%
B. 50.5%
C. 53.5%
D. 52.5%
Answer: D
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Find the area of the specified region.Inside the outer loop and outside the inner loop of the limacon r = 6 cos ? - 3
A. 
(2? - 3
)
B. 9(? + 3
)
C. 
(4? - 3
)
D. 
(4? + 3
)
Solve.Emily owns 25 acres of land which she rents to a rancher for $3111 per acre per year. Her property taxes are $891 per acre per year. How much profit does she make on the land each year?
A. $100,050 B. $76,884 C. $78,666 D. $55,500
Write the standard equation for the following circle.
A. (x - 8)2 + (y - 1)2 = 25 B. (x - 1)2 + (y - 8)2 = 9 C. (x + 1)2 + (y + 8)2 = 9 D. (x + 8)2 + (y + 1)2 = 25
Suppose the figure below is an exaggerated diagram of a plane flying above the earth. If the plane is 4.25 miles above the earth and the radius of the earth is 4,000 miles, how far is it from the plane to the horizon? Round your answer to the nearest mile.
?
?
?
?
A. 199 mi B. 174 mi C. 183 mi D. 184 mi E. 187 mi