The equation you've provided, \( f(t) = 8(2)^t \), represents the growth of the number of fruit flies as a function of time \( t \), which is measured in days. However, you've mentioned that \( f \) represents the number of fruit flies after 6 days, which likely means you want to evaluate the function at \( t = 6 \).
Let's calculate the number of fruit flies after 6 days:
\[ f(6) = 8(2)^6 \]
Now, calculate \( (2)^6 \):
\[ (2)^6 = 64 \]
So, now substitute that back into the equation:
\[ f(6) = 8 \times 64 = 512 \]
Therefore, after 6 days, the number of fruit flies would be \( 512 \).