a machine used to fill gallon size paint cans in regulated so that the amount paint dispenser the mean of 140 oz and a standard deviation of 0.40 you randomly select 35 cans and carefully measure the content the sample mean of the can't is 139.9 Oz does the machine need to be reset explain your reasoning ​

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!