The width of a rectangle is y feet long. the rectangle is 4 feet longer than it is wide. what is the area of the rectangle?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Which one is the correct answer, and why?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)