Evelyn gave a $3 tip to the person delivering her $15 pizza. what percent of the cost of the pizza was the tip that she paid? a. 3% b. 5% c. 15% d. 20%

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

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

How do i do this activity, is appreciated