Math sucks please help

The bottom of a vase is a square.each side measury y+11 units.the square has a perimeter of 55 units what is the value of y?

At the county fair, animals are judged for the quality of their breeding and health. the animal pens are arranged in an array, with one animal in each pen. a barn can hold at most 10 rows of pens and at most 6 pens in each row, with room for people to walk around them. what different ways can the planners of the county fair arrange the pens for the horses and cows in the same barn?

Shane and abha earned a team badge that required their team to collect no less than 20002000 cans for recycling. abha collected 178178 more cans than shane did.