Molly Malone sells shellfish from a cart. She charges $9 for cockles, $8 for mussels, and $15 for oysters. One week she sold the following amounts of each type of shellfish: Monday Tuesday Wednesday Thursday Friday Cockles 34 36 23 39 25 Mussels 16 11 20 24 14 Oysters 6 6 13 14 16 Set the prices as Matrix A and the number sold as Matrix B and use matrix operations to determine Molly's receipts on Thursday. Enter the amount in whole dollars. Do not include the $. (Ctrl)