Solve the problem.The median weekly incomes of full-time male and female workers for various age groups are listed in the table below.AgeIncome (in dollars) 
Let W(a) represent the median weekly income (in dollars) of women and M(a) represent the median weekly income 
of men, both at age a years. Here are the quadratic regression equations for W and M: W(a) = -0.30a2 + 27.61a - 97.01 M(a) = -0.55a2 + 52.01a - 456.46According to these models, at what age(s) is the median weekly income of men equal to the median income of women?
A. 19, 81
B. 20, 78
C. 21, 77
D. 18, 80
Answer: D
Mathematics
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What will be an ideal response?
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Restate the equation in slope-intercept form.8x - 4y = 9
A. y = 2x - 
B. y = 8x - 9
C. y = 2x + 
D. y = 
x + 
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Solve the problem by applying the Fundamental Counting Principle.There are 5 roads leading from Bluffton to Hardeeville, 10 roads leading from Hardeeville to Savannah, and 3 roads leading from Savannah to Macon. How many ways are there to get from Bluffton to Macon?
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Provide an appropriate response.Factor completely: x2 - 9x
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Mathematics