Answer:

Step-by-step explanation:
Given
Number of service bays 
Time taken by each bay to finish one oil change 
Working capacity
hours per day
Thus, in
hours the total number of times one bay has changed the oil is equal to

If one service bay's capacity is equal to
, capacity of two service bays is equal to

Thus, the design capacity is 
Hahah the title but I would help but I can’t
Answer:
Step-by-step explanation:
x decreased by 60% = (1-0.60)x = 0.40x
x increased by 80% = (1+0.80)x = 1.80x
The compounding equation is

. So

Divide by 3725

Daily =

=

= 1.6225
Monthly =

=

= 1.6218
Quarter =

=

= 1.6204
Yearly =

=

= 1.6141
The answer is yearly.