Sandra earns $164 for working 16 hours and $512.50 for working 50 hours. The relationship between her income and the number of hours is a proportional linear relationship. Determine the rate of Sandra’s earnings.

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.)

Answer this question! 30 points and brainliest! only if you know the answer.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.