Which number line shows the solution to the inequality? y-25-5
--8-7-6
4 -3 -2 -1 0 1 2
-8 -7 -6 -5 4 -3 -2 -1 0 1 2
-8-7 -6 -5 -4 -3 -2 -1 0 1 2
8 7 6 5
0 1 2

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.