Which expression doesn't belong? O 7.9x
7.9 + x
O 7.9 . (-10)
0 -79
Which expression doesn’t belong ?

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.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Could somebody me with this radical simplification?