Write an equation so that y depends on x. Find the amount of tax, y, for an 8.7% sales tax on a purchase x.
A) y = 0.087x
B) y = 0.87x
C) x = 0.87y
D) x = 8.7y
E) y = 8.7x
A) y = 0.087x
Mathematics
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Factor: 3x3 + 12x2 - 9x
a. 3(x3 + 12x2 - 9x) b. 3(x3 + 12x) c. 3x(x2 + 4x - 3) d. 3x(x2 + 3x) e. 3x(x2 + 12x2)
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Solve the problem.Find the interest refund on a 49 month loan with interest of $5117 if the loan is paid in full with 12 months remaining.
A. $287.18 B. $325.82 C. $339.39 D. $275.69
Mathematics
Convert to an exponential equation.log3 
= -3
A. 33 = 
B. 31/27 = 3
C. 
3 = 3
D. 3-3 = 
Mathematics
Write in radical form. Assume all variables represent positive real numbers.8k4/5
A. 8
B. 
4
C. 8
D. 8
5
Mathematics