For the school field day, the student are divided into 5 same size teams. any extra student will serve as substitute. if 243 students participate, how many students will be on each team? how many substitute will there be

Add the fractions and simplify 1/2+ 1/3

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%

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?