Answer:
$31,500
Explanation:
On November 1, 2019, Kate leased out a buliding for $4,500 per month.
On the same day( November 1, 2019) she received seven months payment for the building. Which means she received $31,500 (4,500* 7 months).
Accural taxpayers must be able to include all amount they are to receive for payments of services, once they earn it.
Since Kate is an accural taxpayer, and she receive the $31,500 payment on November 1, 2019, she must include the whole $31,500 on her 2019 tax return as a result of this transaction.