exam Maths Puzzle Numerical Ability

Please help me solve this:
Suppose a package delivery company purchased 14 trucks at the same time. Five trucks were purchased from manufacturer A, four from B and five from manu

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exam Other Question

Factor the polynomial completely

12b^3-86b^2+14b

Thanks for your help! My question is combination word problem and cost function. I struggle a lot with these. Please assist.
The total cost (in dollars) of producing x compact disks is C(x)=6.80x+ 450