tolong djiawab yaaa......

2. 15² = 15 x 15 = 225
√256 = 16
√4489 = 69
= 225 + 16 + 69 = 308
3. Pukul 21.30 ( pukul setengah sepuluh )

2.
15² = 225
√256 = 16
√4489 = 69
= 308
3. pk 21.30