What is a 4 digit number divisble by both 5 and 6

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18

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