Details of invoices for purchases of merchandise are as follows: Returns and Invoice Merchandise Freight Freight Terms Allowances Invoice A $2,800 $45 FOB shipping point, 1/10, 1/30 3200 Involce 7,600 60 FOB destination, n/30 800 Invoice 1,400 55 FOB shipping point, 2/10, 1/30 600 Invoice D 500 SO FOB destination, 1/10, 1/30 0 What will be the total amount collected on all four involces, assuming that credit for returns and allowances was received prior to payment and that all invoices were paid within the discount period a 510,00) b. 510.253 5:00 d: 510,653