The temperature is -3°F. An hour later, it drops 6°F and two hours later, it rises 4°F. Write an additional expression to describe this situation.

Use a number line or integer tiles to find the sum.

Explain the meaning of the sum.

Apple pie is removed from 350 degree oven. temperature of the pie t minutes after being removed id given by the function t(t)=72+268e-0.068t

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Having a hard time understanding this question (see attachment).