Answer:
$3,300
Step-by-step explanation:
Calculation for the total amount of the expenses that Donald can deduct
Total amount of expenses=Repairs (first floor) $ 300+50%*($1,800 Real estate taxes+ Mortgage interest $1,200 +Utilities $1,000+Depreciation $2,000
Total amount of expenses=Repairs (first floor) $ 300+0.5*(6,000)
Total amount of expenses=Repairs (first floor) $ 300+3,000
Total amount of expenses=$3,300
Therefore the total amount of the expenses that Donald can deduct will be $3,300