Use the multiplication property of inequality to solve the inequality and graph the solution set on a number line.4x ? 12
A. (- 3, ?)
B. (-?, - 3)
C. [3, ?)
D. (-?, 3]
Answer: C
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The simple interest note was discounted at 15%. Find the discount period in days and the proceeds.Loan made: Jan 7Face value: $2,600Length of loan: 120 daysRate: 12%Date of discount: Mar 7
A. 61 days, $2,545.92 B. 60 days, $2,649.92 C. 61 days, $2,531.27 D. 61 days, $2,635.27
Determine all possible rational solutions of the polynomial equation.f(x) = 2x3 - 5x2 + 7x - 17
A. ±1, ±2, ±17, ± 
B. ±1, ±17, ± 
, ± 
C. ±1, ±2, ±17
D. ±1, ± 
, ±2, ± 
Solve the problem.Roberto invested some money at 7%, and then invested $5000 more than twice this amount at 12%. His total annual income from the two investments was $4320. How much was invested at 12%?
A. $29,000 B. $2900 C. $24,000 D. $15,000
Find the axis of symmetry of the function.f(x) = 9x - x2
A. x = - 
B. x = - 
C. x = - 
D. x = 