If lorenzo buys 3 shirts for s dollars and 2 pairs of pants for p dollars a pair. what does the expression 3s+2p represent

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%

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

Which number line correctly shows 0.8 + 0.3?