The assessed value on a property increased from $285,000 last year to $298,000 in the current year. Last year's property tax rate was $1.56324 per $100 of assessed value. a) What will be the change in the property tax from last year if the new tax rate is set at $1.52193 per $100? b) What would the new tax rate have to be for the dollar amount of the property taxes to be unchanged?