Answer:
1. As you have to spend more Yens for 1 USD at future date, it means that Yen is selling at discount in the forward market relative to the US Dollar.
2. The spot exchange rate is ¥132.78 per dollar, hence, total dollars Purple Panda Importers will receive today is ¥625 million/¥132.78 = $4.71 million
3. Purple Panda Importers would get more dollars if the Japanese firm paid off its account today.That is, he will get more money if the account is paid today.