Solve the problem.The markup on an item is its selling price, s, minus its cost, c. If a new printer costs $284.25 and it sells for 
what is the markup?
A. $115
B. $115.74
C. $124.26
D. $684.24
Answer: B
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Solve the given third- or fourth-order differential equation.D3y + 8 D2y + 15 Dy = 0
A. y = c1 + c2e-3x + c3e-5x B. y = c1e-3x + c2e-5x C. y = c1 + c2e3x + c3e5x D. y = c1e3x + c2e5x
Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y' + 9y = 0, y
= -1
A. y = - e9t B. y = e-9t C. y = 9e-t D. y = - e-9t
Find the first six terms of the sequence.a1 = 1, an = 2an-1
A. 1, 3, 6, 9, 12, 15 B. 1, 2, 4, 8, 16, 32 C. 0, 3, 3, 6, 9, 12 D. 2, 4, 8, 16, 32, 64
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100