Which is the most reasonable estimate of the margin of error for the mean number of hours students at the school study each week using the sample mean from a random sample of 120 students?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute