Answer:
Mary has
3 10
shilling coins.
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
Answer:
I cant see the whole thing But I think you're right
652,100,000 is the answer :D
The equation will be of the form:

where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:

Rearranging and taking natural logs of both sides, we get:


The required model is: