Tom collects black and white model cars. he has 72 in all. he has eight more than three times as many black ones than white ones. how many black cars does tom have in his collection

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

What is the inverse of f(x) = 6x -24

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!