Answer:
40
Step-by-step explanation:
Let's start by introducing a variable: x.
X will be the unknown number in the question.
Recall that 20% of a number is really just equal to .2 times that number.
Therefore, we can create the equation:
.2x = 8 divide by .2 on both sides
x = 40 and we're done!
Let me know if you have any questions in the comments