When jeremy surveyed thirty seventh grade students at the community pool he found that to a 15 had not read at least one book during july he knows there are about 200 7th grade students in his community so he in first that about 40 of them did not read any books in july is that a good inference explain

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!