A holder of $30500, 8%, 90 day note dated June 1st decides to sell the note at a discount based on ordinary interest. The notes is sold on July 19th at a discount of 12% using the bankers rule find the proceeds rounded to the nearest cent.

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

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