Answer:
Rate of change of profit for this period = $2750 / month
First, let's fine the decimal of each fraction.
-5 Divided By 6 = -0.83333333333
17 Divided By 18 = 0.94444444444
-2 Divided By 9 = -0.22222222222
-5/6 - 17/18 - (-2/9) = -1.55555555556
Decimal : 1.5
Percent : 150%
There is 60 seconds in 1 minute
600/60 = 10
10 minutes is your answer
hope this helps
