An investor holds a portfolio of $10 million of risky bonds on each of the following three companies. Assume we know the recovery rate of each bond in advance:

Firm A with a recovery rate of 40%

Firm B with a recovery rate of 30%

Firm C with a recovery rate of 50%

If the investor uses CDS (credit default swaps) to protect his $30 million investment, how much would he receive for the following scenarios:

A) Firm B defaults in a standard CDS

B)) Firm B defaults in a first-to-default basket

C) Firm A defaults, followed by firm B in a first to default basket

D) firm A defaults in a senior basket with a $5 million first loss limit

PLEASE AND THANK YOU, NEED HELP ASAP!