Answer:
27
Step-by-step explanation:
If a= -3 what is 3a^2 = 27
Answer:
Population of bacteria at time
is 
Step-by-step explanation:
The complete question is
If
represents the number of bacteria in a culture at time t, how many will there be at time 
Solution
Given
The population of bacteria after time t is equal to 
Population when at time 
We will substitute the value of time in above equation.

3/12x5 is the answer of your question.