PLEASE HELP ME ASAP There are 100 black parer clips, 150 white paper clips, and 250 silver paper clips in a box. The average mass of the paper clips is 3.9 g. (a) Find the total mass of the paper clips. (b) If the box of paper clips has a mass of 2,596 g, what is the mass of the empty box? (SHOW YOUR WORK)

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!