At Albemarle High School, 5/9 of the students are in band and 57% of the students are in chorus. Are more AHS students in band or chorus?

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%