Exercies 3: Payments of are made at the beginning of each year for 30 years. These payments earn interest at the end of each year at an annual effective rate of 6%. The interest is immediately reinvested at an annual effective rate of 8%. At the end of year 30, the accumulated value of the 30 payments and the reinvested interest is 8400. Calculate Exercies 3: Payments of X are made at the beginning of each year for 30 years. These payments earn interest at the end of each year at an annual effective rate of 6%. The interest is immediately reinvested at an annual effective rate of 8%. At the end of year 30, the accumulated value of the 30 payments and the reinvested interest is 8400. Calculate X