If you list the answer choices, I might be able to help you better.
The half-life of the radioactive substance is 67.95 hours.
Answer:
It's 2
Step-by-step explanation:
Because
-16/-8=2
In financial<span> planning, </span>polynomials<span> are used to calculate interest rate problems that determine how much money a person accumulates after a given number of years with a specified initial investment.</span>
(3) 62.5% cuz u take the total number of the students and u divide it by the number of students between 60 to 65