<span>Rock, Carbon, Water, Nitrogen</span>
H=number of hours
m=total salary
m=15.50h+50
put 400 in for m
400=15.50h+50
now solve for h
400=15.50h+50
-50. -50
350=15.50h
Divide 350 by 15.50to get your final answer
you get a long decimal so I rounded it.
22.6 hours
The answer you are looking for is B. 15
Quarterly or monthly because semi annually is to soon do I think monthly
