Solve the problem.A rectangular garden has dimensions of 25 feet by 21 feet. A gravel path of equal width is to be built around the garden. How wide can the path be if there is enough gravel for 696 square feet?
A. 8.5 ft
B. 6 ft
C. 8 ft
D. 7 ft
Answer: B
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The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. x = -2, y =4, z = -1 B. x = 4, y = -2, z = -1 C. x = -2, y = -1, z = 4 D. x = 4, y = -1, z = -2
Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (6, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Perform the conversion. Round to the nearest hundredth when necessary.550 cm to ft
A. 2600.40 ft B. 116.42 ft C. 18.06 ft D. 1804.00 ft
Solve the problem.The area A(r) = ?r2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when 
A. 14? ft2/ft B. 14 ft2/ft C. 7? ft2/ft D. 49? ft2/ft