If three times a number is increased by 4, the results is -8. find the number

What’s 8y+48 and factor each expression completely

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost

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!