On the coordinate plan, what is the distance between the points (4, 2) and (−7, 2)?

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

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac