78 is bigger since it's a whole number. 0.78 is less than 1 itself. Hope that I helped :)<span />
Answer:

Step-by-step explanation:
We have to find an equation of the form
, where a is the initial value, b is the rate, and x is the time.
Here, the initial amount if 72, so a = 72. We also know that the population triples every hour, which means b = 3. Plug these in:


Answer:
work is attached and shown