10. A freight train leaves a station and travels at a rate of 30 miles per hour. Two hours later, an express the same station traveling in the same direction at a rate of so miles per hour. In how many hours will the express train
overtake the freight train?

The product of two negative rational numbers is always zero sometimes zero never zero

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

Solutions for 2x+7 less than or equal to 3x-5