using formuals

d) The Dollarada received an invoice for $14,945.89 dated January 31, terms 5/10, 2/30, n/90, for a shipment of party supplies. Dollarada made two partial payments. a. How much was paid on February 7th to reduce the unpaid balance to $5,584? b. How much was paid on March 1** to reduce the outstanding balance by $1,700? e) Soul Impressions shoe store received an invoice for $5,589.89 less 3.5% dated July 13th, terms 5/10, 2/30, n/60, for a shipment of shoes. Soul Impressions made two partial payments. a. How much was paid on July 20th to reduce the unpaid balance to $3,000? b. How much was paid on August 17th to reduce the outstanding balance by $1,500? Formulas: TDA - LP xd NP = LP - TDA NP = LP x (1 -d) (1 - dz) x (1 - da) ... (1 dn) SERD=1-[(1 - dt) x (1 - dz) x (1 - ds) ... (1 - dn)] Payment Amount Amount Credited= 1-d TDA LP = d TDA LP Payment Amount=Amount Credited x (1-0) NPF = (1 -d) NP = LP x NPF