Prior service cost at January 1, 2024, from plan amendment at the beginning of 2021 (amortization: \$18 million per year) Net loss-AOCI at January 1, 2024 (previous losses exceeded previous gains) Average remaining service life of the active employee group Actuary's discount rate $126 million $780 million 10 years 7% $126 million $780 million 10 years 7% Required: 1-a. Determine Mahomes's pension expense for 2024. 1-b, 2. to 4. Prepare the appropriate journal entries to record the pension expense, to record any 2024 gains and losses, to record the cash contribution to plan assets and to record retiree benefits