You plant two flowers in a garden. The equations y= 12.7X+21 and y=5.2x +21 model the heights y of the flowers, in millimeters, after x days. What does the y-intercept of each equation represent? Will the
flowers ever be the same height?

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%