6. At a farm, Ben and Kathy were each given a bucket that weighedx grams. Ben picked y grams of blueberries. The blueberries Kathypicked were 3 times as heavy as Ben's.(a) How heavy was Ben's bucket of blueberries in terms of x and y?(b) How heavy was Kathy's bucket of blueberries in terms of x and y?(c) Kathy picked 400 g more blueberries than Ben. Her bucket of blueberries weighed 900 g. How heavy was the bucket?