PLEASE HELP!! Pierre-Auguste Renoir's charge account uses the unpaid balance method to compute the
finance charges at a monthly periodic rate of 2.15%. During the month, he charged $189.34,
made a $100.00 payment, and had a $21.54 finance charge. Find (a) the unpaid balance (b)
the previous balance, and (c) Pierre's new balance.

What’s the present value of a perpetuity that pays $250 per year if the appropriate interest rate is 5%? $4,750 $5,000 $5,250 $5,513 $5,788what is the present value of the following cash flow stream at a rate of 8.0%, rounded to the nearest dollar? cash flows: today (t = 0) it is $750, after one year (t = 1) it is $2,450, at t = 2 it is $3,175, and at t=3 it is $4,400. draw a time line. $7,917 $8,333 $8,772 $9,233 $9,695