Your firm has a line of credit $($LoC$)$ with RBC with a limit of $$6\mathrm{.}5$ mln$.$ The APR on the LoC is $5\mathrm{.}15\%$ and the commitment fee rate is $1\mathrm{.}15\%.$

i$.$ If you borrow $$1\mathrm{.}85$ mln on the line of credit for $5$ months, what is your EAR?

ii$.$ If you borrow $$4\mathrm{.}25$ mln on the line of credit for a full year, what is the EAR?

iii. If you borrow $$350,000$ for the first six months of the year and $$700,000$ for the next six months, how much will you pay in interest and fees?