Find the measure of jk that makes triangle jlk- triangle plm

In the rectangle below ac=30 units what is de

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?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator