Please help i will give brainliest to the first person that answers correctly

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!