What is the prime factorization of 75?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

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?

Find the value of x. give reasons to justify your solutions! l, m ∈ kn