When two people find a way to get over/around a conflict
I would say D for this one mostly because I know for sure most of these answers are right.
Your answer would be A: 24
because 20% of 30 is 6 and because he wants to decrease it by 20% (or 6) it would make your answer 24.
20% into a decimal is .20
.20 divided by 30=6
200 is a possible measurement of the AQI.