The answer is b=3. divide 5 into 15
Subtract b and then a = (zma) - b
First calculate the hourly rate, which is the difference of cleaning 2 and 1 rooms:
175-125=50
then calculate the initial value by subtracting the hourly rate from the "1 room" cost:
125-50=75
The initial cost might be something like driving to the place (which is only necessary once), while the rate covers work time or cleaning utensils used.
Answer:
you would just 4.8 x how many years
Step-by-step explanation:
