A hybrid car can cover 45 miles per gallon. How much gas does it need to cover 15 miles?

Which of the following of the following sets of side lengths could not form a triangle?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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