Simply:3x+5y-x+2y
quickly please​

Find the slope of a line given the following two points

Somone me i want to know what 18 hours out of 24 hours in a fraction

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%