A map shows a section of highway 18 that forms a straight line. A family plans to drive 440 miles on highway 18 from Springfield to Columbia. They drive for 66 miles, and then decide they will stop halfway through their trip to rest for the night. How much farther do they need to drive before they stop for the night?

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?