You have a part time job, you get paid $9.50 per hour. You want to save $250,
how many hours do you need to work?
(Round to the nearest tenths)

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.