Maxine who turned 55 years on 5th of January 2018 purchased a principal private residence at a cost of $120 000 on the 1st of December 2017. in January 2018 she renovated the house by adding a swimming pool and a gazeb at a cost of $20000 . in October 2018 she sold the house for $200 000. How much is the capital gains tax. if any on this transaction