The length of a rectangle is 1 meter less than twice its width. The perimeter of the rectangle is 40 meters. What is the length of the rectangle?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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. how many hours after the truck's departure will the two meet?