A gear turns 9 times in 1.5 minutes. in how many minutes will it turn 240 times

Which triangles area would be calculated using the trigonometric area formula

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.)

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)