Brass is a metallic alloy that is made of copper and zinc. It takes 400 kg of zinc to make 1,200 kg of brass. How much copper is needed to make 450 kg of brass? (45 points)

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

What are the factors of me - 12m + 20?

Raymond took out a 25-year loan for $135,000 at an apr of 3.6% compounded monthly. if his bank charges a prepayment fee of 6 months' interest on 80 % of the balance, what prepayment fee would he be charged for paying off the loan 5 years early?