-3 + (-8) is basically the same as -3 - 8 which equates to -11.
Answer is -11.
dfyhgffghgghjhghjuhghujijhf
Y=mx+b
y=6x+65
Hopefully this helps
The amount of radioactive material remaining after 24 hours is 92.15 kg.
<h3>
Exponential function</h3>
An exponential function is in the form:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the amount of the substance after t hours.
From the equation, a = 100 mg
Also, after 6 hours:

After 24 hours:
y = 100(0.9966)²⁴ = 92.15 kg
The amount of radioactive material remaining after 24 hours is 92.15 kg.
Find out more on Exponential function at: brainly.com/question/12940982
Answer Madam Gazelle
Step-by-step explanation: