Evaluate the expression for the given values of the variables, if possible.
, for c = -18, d = -5
A. -23
B. -2
C. 3
D. 2
Answer: D
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Find the perimeter.
A. 58 m B. 46 m C. 60 m D. 161 m
Determine the domain and range of the function.g(x) = (x - 8)2 - 2
A. Domain: [-?, -8) Range: [-?, -2) B. Domain: (-?, ?) Range: [-?, -2) C. Domain: [8, ?) Range: [-2, ?) D. Domain: (-?, ?) Range: [-2, ?)
The graph shows the monthly revenue in millions of dollars of a growing company after the company doubled its advertising. Use the graph to solve the problem. 
During what period of time is the company's monthly revenue decreasing?
A. From the time that the advertising was doubled until the 6th month B. From the 6th month to the 9th month C. From the time that the advertising was doubled until the 9th month D. From the 9th month to the 12th month
Solve.When interest is compounded continuously, the balance in an account after t years is given by 
, where P0 is the initial investment and k is the interest rate. Suppose that P0 is invested in a savings account where interest is compounded continuously at 9% per year. Express P(t) in terms of P0 and 0.09.
A. P(t) = P0e0.09t B. P(t) = P0e0.09 C. P(t) = P0e9t D. P(t) = P0e0.9t