Which word problem is best modeled by the equation $2,800 + n = 4,000$?

An airplane needs to fly 4,000 miles. It has already flown 2,800 miles. How many more miles, n, does it have to fly?

A company made 2,800 dollars on Monday and 4,000 dollars on Tuesday. How much money, n, did they make in total?

A company started with 4,000 dollars and spent 2,800 dollars. How much money, n, is left?

An airplane flew 2,800 miles and then returned 4,000 miles. What is the total distance, n?

Representing Situations of the Form px+q=r and p(x+q)=r Practice — Grade 7 math