{x : x is a person who has won an Olympic metal}

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Me because some of question i don’t understand

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.