Consider the probability that at least 84 out of 273 students will not graduate on time. Choose the best description of the area under the normal curve that would be used to approximate binomial probability.

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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%