Jeff starts driving at 45 miles per hour from the same point that lauren starts driving at 40 miles per hour. they drive in opposite directions, and lauren has a half-hour head start. how long will they be able to talk on their cell phones that have a 270-mile range?

Fred and gene are hang gliding. fred is 700 feet above the ground and descending at 15 ft/s. gene is decending as shown in the table. interpret the rates of change and initial values of the linear functions in terms of the situations they model. show all work. freds equation is f(x)=-15x+700. ( genes is the table attached)