A particular car can travel 40 miles for every gallon of fuel that it burns. Which graph best represents the relationship between the miles travelled and the gallons of fuel used? PLZ help me

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Which one is the correct answer, and why?