Gthe information below pertains to the retiree health care plan of thompson technologies: ($ in 000s) 2018 beginning balances 2018 ending balances accumulated postretirement benefit obligation $ 560 $ 585 plan assets 0 75 funded status (560 ) (510 ) prior service cost–aoci 195 158 net gain–aoci (65 ) (64 ) thompson began funding the plan in 2018 with a contribution of $142,000 to the benefit fund at the end of the year. retirees were paid $53,000. the actuary’s discount rate is 5%. there were no changes in actuarial estimates and assumptions.

required:

1. determine the service cost for 2018.

2. determine the postretirement benefit expense for 2018.

3. determine the net benefit liability for 2018.