Solve the problem.Suppose that P(x) represents the percentage of income spent on housing in year x and I(x) represents income in year x. Determine a function H that represents total housing expenditures in year x.

A. H(x) = (x)
B. H(x) = (P + I)(x)
C. H(x) = (I - P)(x)
D. H(x) = (P ? I)(x)

Answer: D

Mathematics

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A. - x(6 - x)3/2 - (6 - x)5/2 + C
B. - x(6 - x)3/2 + (6 - x)5/2 + C
C. - x(6 - x)3/2 - (6 - x)5/2 + C
D. x(6 - x)3/2 + (6 - x)5/2 + C

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Use the substitution formula to evaluate the integral.

A.
B. - 
C. 13
D. 26

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A. 3x2 + 25x - 9 B. x2 - 9x + 26 C. x2 + 26x + 25 D. 3x2 + 26x - 9

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Solve the differential equation. = 6x5

A. y =  2 + 1
B. y = x12 + C
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