jawab satu saja pakai cara

1. 77°F=...°C
C=5/9(77-32)
=5/9.35
=175:9
=19,4°C
2. a. 75°F=...°k
k=5/9(75-32)+273
=5/9.38+273
=190:9+273
=21+273=294°k