I was able to graph but can someone please help with the rest of the sheet.

Graph the equation by plotting point x=2

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.