Solve the problem.The space in a landfill (in acres) decreases with time as given by the function 
where t is measured in years. How much space is left when t = 6?
A. 110 acres
B. 220 acres
C. 200 acres
D. 400 acres
Answer: C
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Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 2y4z5
Solve the problem.Suppose that the salinity S of ocean water at a given depth d is modeled by the equation 
where S is measured in grams salt per kilogram water and d is measured in meters. What is the salinity when the depth is 931 m? Round your answer to the nearest hundredth.
A. 95.63 g salt/kg water B. -27.25 g salt/kg water C. 92.63 g salt/kg water D. 36.15 g salt/kg water
Find the domain, the range, and any intercepts.
A. domain: (-?, ?); range: (-?, 9]; intercepts: (0, 8), (-2, 0), (4, 0) B. domain: (-?, ?); range: (-?, 9]; intercepts: (8, 0), (0, -2), (0, 4) C. domain: (-?, ?); range: (-?, 9); intercepts: (0, 8), (-2, 0), (4, 0) D. domain: (-?, 9]; range: (-?, ?); intercepts: (0, 8), (-2, 0), (4, 0)
Determine whether the following is the graph of a function.
A. Yes B. No