Lou’s board games are all on a shelf with a length of 30 inches, a width of 12 inches, and a height of 14 inches. If his games take up half of the shelf, which expressions show how to calculate the volume of the space that the games are taking up? Check all that apply

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!