Solve.Stevie bought a stereo for $250 and put it on sale at his store at a 55% markup rate. What was the retail price of the stereo?
A. $350.00
B. $387.50
C. $287.50
D. $500.00
Answer: B
Mathematics
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Factor completely.80x9y7 - 80x7y5 + 48x2y3
A. 16x2y3(5x7y4 - 5x5y2 + 3) B. 16(5x9y7 - 5x7y5 + 3x2y3) C. 16x2(5x7y7 - 5x5y5 + 3y3) D. -16x2y3(-5x7y4 - 5x5y2 - 3)
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Factor completely. If unfactorable, indicate that the polynomial is prime.-x2 + 4x + 45
A. (x - 5)(x + 9) B. prime C. -(x + 5)(x - 9) D. -(x - 5)(x + 9)
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Use technology to calculate det A.A = 
A. 38 B. -158 C. -38 D. 250
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Find the equation of the line passing through the indicated two points. Write the equation in slope-intercept form.(-8, 2) and (0, -3)
A. y = 
x - 3
B. y = 
x - 3
C. y = - 
x - 3
D. y = - 
x - 3
Mathematics