Math inequality help

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?