John bought 3 cakes and 24 brownies for a total of $81. The next month in February, he bought 2 cakes and 32 brownies for $86. (Let c=price of a cake and b=price of a brownie)

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!