Answer:
gallons
Step-by-step explanation:
c and d I think but not quite sure
Hope the picture will help you
m = 7, m = -15
The absolute value makes it so we can make two equations:
m + 4 = 11 and m + 4 = -11.
solve the equations:
m + 4 = 11
m = 7
and
m + 4 = -11
m = -15.