​Evaluate the following expression if y = 4 ​

​
15

+

5

×

y

÷

2
2
15 + 5 × y ÷ 2
2

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

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)