Provide an appropriate response.Simplify: 
A. 
B. 0
C. 1
D. 
Answer: D
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Factor out the largest common factor.3n2 + 18n - 12
A. 3(n2 + 6n - 12) B. 3n(n + 2) C. 3(n2 + 6n - 4) D. 3(-n2 - 6n + 4)
Solve.(x + 5)2/5 = 16
A. x = -1019, x = 1029 B. x = -9, x = 9 C. x = -1029, x = 1019 D. x = -1024, x = 1024
Solve.Lucus had a balance of $66 in his checking account. Since then he made deposits of $137, $357 and $361 and wrote checks for $99, $122, $189, and $329. When all of the deposits are recorded and all of the checks clear, what will balance will he have in his checking account?
A. $281 B. $1660 C. $182 D. $116
farmer is growing corn in a field. The more fertilizer he spreads, the greater his yieldY , up to a limiting value of 100 bushels per acre. If he spreads x pounds of fertilizer per acre, the yield follows the differential equation 
where k is a constant.
(a) Write this first-order linear differential equation in standard form. (b) Solve for Y (x) given that Y (0) = 40 . (c) Suppose that for Y (10) = 70 . Use this to determine k. (d) Find Y (20). (e) Find x so that Y (x) = 80 . In other words, how many pounds of fertilizer per acre must be spread to yield 80 bushels per acre?