Part a: solve –vp + 40 < 95 for v. show your work. part b: solve 8w – 3r = 45 for r. show your work.

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.)

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If a line is defined by the equation y = 5x + 2, what is the slope?