...im mainly trying to figure out how I would get to 100% and turn it into fractions, any help? ​

Explanation:

Let's pick a large value such as 1000

So let's say 1000 people were surveyed.

Of those 1000 people, 80% are registered voters. That means we have 0.80*1000 = 800 registered voters. Note how 800/1000 = 0.80 = 80%

Of those 800 registered voters, 75% of them voted in the last election.

This means 0.75*800 = 600 of the registered voters participated in the last election.

So 1000-600 = 400 registered voters did not participate in the last election

This forms the fraction 400/1000 = 4/10 = 2/5 which points us to choice D as our final answer.

It's like saying we had 5 people total, and 2 of them didn't vote in the last election.

Side note: The fraction 2/5 turns into 0.40 = 40%

∠cbe and ∠deb are same-side interior angles.

i took the test

hope this !

let me know