A< 1.5 how would i graph that on a numberline? graph the inequality.

Aportion of a line bounded by two points is defined as

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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%