Representation of addition subtraction and multiplication of integers on number line

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.