I wanted to ask the following:

1) What did Bibi Fatema ask for Mahr from Imam Ali, and what could it be its approximate value in Todays Era?

2) During 7th Imams Imamat, there was a period when he was Imprisoned, what was the 8th imams role during this time since the 7th Imam was unavailable due to imprisonment?

1. 500 silver Derhams. Probably 1000 in today’s buying power
2. During that time he would act as his representative