Compute the ordinary interest (360-day year) and the total amount of the loan in the following problems.

Principal, Rate, and Time	Ordinary Interest	Amount
a. $24,000 at 5% for 270 days	$	$
b. $1,800 at 8% for 90 days	$	$
c. $2,400 at 6% for 30 days	$	$