What is the midpoint of the segment shown below?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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%

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x