The pie store is having a 20% off sale on all of its pies. if the pie you want regularly costs $18, how much would you save with the discount?

Dilations map circles to circles and ellipses to ellipses with the same. true or false

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

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?