Simplify the algebraic expression
(10x2 + 11y) - (3x2 + y)

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

Ineed with math stuff it involves graphs

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.