To solve the equation \( \frac{2f}{5} - \frac{8}{5} + 2f = 8 \), we can follow these steps:
1. **Combine like terms**: First, let's write \( 2f \) in terms of fractions with a common denominator. The common denominator here is 5.
We can express \( 2f \) as \( \frac{10f}{5} \) (since \( 2f = \frac{10f}{5} \)).
Now we can rewrite the equation:
\[
\frac{2f}{5} - \frac{8}{5} + \frac{10f}{5} = 8
\]
2. **Combine the fractions on the left side**:
\[
\frac{2f + 10f - 8}{5} = 8
\]
This simplifies to:
\[
\frac{12f - 8}{5} = 8
\]
3. **Clear the fraction**: Multiply both sides by 5 to eliminate the fraction:
\[
12f - 8 = 40
\]
4. **Add 8 to both sides**:
\[
12f = 48
\]
5. **Divide both sides by 12**:
\[
f = 4
\]
Thus, the solution to the equation is \( f = 4 \).
The correct response is **4**.