A = P(1+i.n) A = P(1 + i)" 100 Miss Lee needs to draw up a budget of her monthly expenses. She earns R8 900 per month. Her bills in one month are: Rent: R2 100, Electricity R300, Car payments R 1 450, Insurance R370, Petrol R600 Clothing account repayment R655 and Groceries R1 350. 3.1.1 What are her total expenses for one month? ​