Use a graphing calculator to plot the data and find the quadratic function of best fit.A small manufacturing firm collected the following data on advertising expenditures (in thousands of dollars) and total revenue (in thousands of dollars). 
Find the quadratic function of best fit.
A. R(x) = -0.024x2 + 7.13x + 6209
B. R(x) = -0.015x2 + 4.53x + 6123
C. R(x) = -0.091x2 + 5.95x + 6337
D. R(x) = -0.31x2 + 2.63x + 6128
Answer: C
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Solve the problem.Write an expression in simplest form that represents the perimeter of the shape. Then use the expression to find the perimeter of the shape if y is 11.
A. y5 + 12; 161,063 B. 5y + 12; 67 C. 5y + 7; 62 D. 3y + 7; 40
Solve the problem by estimating.The population of Capital City is 7,695,831 and the population of Spring City is 4,032,652. Round each population to the nearest hundred-thousand to estimate how much larger Capital City is than Spring City.
A. 3,600,000 B. 3,800,000 C. 3,700,000 D. 3,663,000
Provide an appropriate response.Which of the following is not associated with a mortgage loan?
A. equity B. unsecured debt C. real property D. collateral
Answer the question.Which number is larger?
A. -28.1 B. -28.07