Help Please! It would help a lot 20 POINTS! 1. Winston grows green dragon apples. This year, he shipped $80\%$ of these apples to sell at supermarkets and kept the rest to make cider. Of all the green dragon apples he sold to the supermarkets, only $60\%$ of them were bought. If a total of $840$ green dragon apples were bought, how many green dragon apples did Winston keep to make cider?

2. Ms. Forsythe gave the same algebra test to her three classes. The first class averaged $80\%,$ the second class averaged $85\%,$ and the third $89\%.$ Together, the first two classes averaged $83\%,$ and the second and third classes together averaged $87\%.$ What was the average for all three classes combined? Express your answer to the nearest hundredth.