Find the angle measure of b

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

Graph the linear function using the slooe and y intercept

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%