Can someone answer this

Well I like to start with a base number. Ten. Ten days.

--Without Initial Costs--

Actor A after 10 days -  $500

Actor B after 10 days -  $600

A after 15 days -  $750 + $250 = $1000

B after 15 days -  $900 + $200 = $700

A after 5 days -  $250 + $250 = $500 <|

                                                          /\ \/ -ANSWER

B after 5 days -  $300 + $200 = $500 <|

A after 3 days -  $150 + $250 = $400

B after 3 days -  $180 + $200 = $380

A after 8 days -  $400 + $250 = $650

B after 8 days -  $480 + $200 = $680

Now there, I did a whole bunch of em. Now to add the initial costs. (I did the adding on the same numbers that I just typed so it may be confusing that NOW I am saying to do it when it is already done. LOL)

Basically after all that, the answer is 5 days.

Hope this helps!