As always, check with your rep . .
Yes, the agreement seems to clearly states your rehearsal day is five hours.
So to do a ten out of twelve, the actor would be paid 15.00 an hour - or 75.00 - which doesn't seem to be a tremendous amount.
As far as not having a day off in the week - - - some agreements allow this on opening week, but this one does not seem. You would have to check with AEA on what the rate would be . . . but is could either be straight overtime, some multiple of the overtime rate, or just flat fee.