Give your answers rounded to 6 decimal places in the following questions. 1. The effective rate of interest is 6.5% per annum. Calculate the effective rate of interest per month. 2. The effective rate of interest is 0.5% per month. Calculate the effective rate of interest per half-year. 3. The effective rate of interest is 6.5% per annum. Calculate the effective rate of discount per month. 4. The effective rate of discount is 0.5% per month. Calculate the effective rate of interest per annum. 1