Table:
text: KJIL
Kansas
Kansas
Call_sign Frequency_MHz City_of_license ERP_W Class_ FCC_info
K239AX 95.7 Larned, Kansas 170 D FCC
K299AR 107.7 McPherson, Kansas 170 D FCC
K243BD 96.5 Salina, Kansas 200 D FCC
K207BP 89.3 Quinter, Kansas 232 D FCC
K219DC 91.7 St. John, Kansas 225 D FCC
K204CD 88.7 Tribune, Kansas 204 D FCC
K231BG 94.1 WaKeeney, Kansas 170 D FCC

Question: What frequency of 88.7 MHz did average ERP W have among KJILs Kansas?

Question: What is the call sign of k231bg Kansas for KJIL with what sum of erp w ?