Given:
Initial mass, m₀ = 23 g
Decay constant, k = 0.13
Exponential decay obeys the equation

where t = time, days
For half life, the mass is m = m₀/2.
Therefore

Answer: The half life is 5.33 days
Nikkis charges are 20,40,50,80. Dave’s charges are 25 and 37.5.
Answer:
The answer is, the center is (7,6) and the radius 3 soo, you would count three from the center to the arc( outer line and then if its three than ur good. proven in khan academy don't worry
Step-by-step explanation:
XD finally no more schoooooolllllllll baaaabbyyyyyy
A would be the correct answer