Help im stuck and my pullcrap ahh teacher not her to help and she got me do ixls

If g(x) is an odd function, which function must be an even function?

What is the greater volume 72 quarts or 23 gallons

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!