Helen's lawyer gave her the following two options to settle her invoice:

(a) $2,400.00 in 1 month and the balance of $1,800.00 in 5 months.

(b) Two equal payments, one in 20 days and the other in 7 months.

If money earned 3.80% p.a., what was the value of the equal payments in Option (b) such that it is equivalent to the payments in Option (a)? Use now as the focal date for this question.

Round to the nearest cent

b) Helen then borrowed $4,250 on May 16, 2020 at 4.5% p.a. How many days would it take for her to re-pay the loan if she made a payment of $4,316.94?

Roundupto nearest day.