Relax

Respuesta :

First day: 2 1/2= 2.5 hours
Second day: 4 1/4= 4.25 hours
When h is hours:
2.5h + 4.25h = 54
6.75h = 54
/6.75 /6.75
h= 8
Naomi charges $8 an hour to mow lawns. Hope this helps.