7y=-24
y= -24/7
You have to add the two vaiables and then divide to get the y by itself.
Answer:
Yes
Step-by-step explanation:
Since it has a half life of 60 days, this means that every 60 days it multiplies by 0.5. Since it asks for 300 days, your equation is 500*(0.5)^5, which is 15.625 mg left after 300 days.
