Here are some preliminary details and data about a single woman with no dependents. She needs your help computing and filing her 2020 income taxes (due in mid-2021). She earns a salary of $180,000 and is a resident of Ontario. Below is a list of her financial expenses/activities during the 2020 tax year, which may or may not) be relevant to computing her taxes. 1. She made the maximum contribution to CPP and El for 2020 2. She made an $4,500 donation to Sick Kids Toronto. 3. She contributed $6,000 to a TFSA, invested in a GIC earning 2% in 2020. 4. She contributed $12,000 to an RRSP, which is invested in a balanced international equity mutual fund which eared 6% in 2020. 5. She invested $10,000 into a taxable investment account, which eamed 3.5% interest from a Canadian bond ETF. 6. She had medical expenses, for which she was 'not reimbursed by her employer's insurance company totaling $4,500. 7. She paid a total of $48,000 in (personal) home mortgage payments, of which $24,000 was interest. 8. She gave $3,000 as a gift to her younger brother who is 21 years old. 9. The value of her stock portfolio increased from $35,000 at the beginning of 2020 to $46,000 at the end of 2020. The portfolio was kept intact without any trades during 2020. Also, she received $1,000 as dividend in 2020. You should look up the amounts and list of credits/deductions online from the relevant websites. Part A: Please compute the total amount due (Federal and Provincial) in taxes for the 2019 tax year (due in mid-2020). You must show your work for all calculations. What is her net income? What is her taxable income? Part B: What is her average tax rate? What is her marginal tax rate