1:59 pm is 13:59, 13:59 - 06:31 = 07:28
Answer: 7 hours 28 minutes to reply
2.,3. On a "date" at 6:31 am when he already has a girlfriend? Dump him and don't look back.
I don’t know because I think you copied the question wrong
Answer:
81,000,000
Step-by-step explanation:
(3²)² × (10³)²
(9)² × (1000)²
81 × 1000000
81,000,000