Answer:
The miner would have 3 1/2 of radioactive material in the sample at the beginning of the 7th day.
Step-by-step explanation:
hope this helped!
This is how I would go about solving this, hope it helps.
So i think its $4.35.
Step-by-step explanation:
I did addition to find out this answer my calculations seem to be correct.
$3.85 + 50 cents = 4 dollars and 35 cents
