Mathematics, 09.09.2021 14:00 ravenl1001

7. A distribution centre sends three different types of parcels. One consignment has 6 small, 8 medium and 9 large parcels which cost $173.20 to post. Another consignment has 7 small, 13 medium and 17 large parcels with total postage $291.05. A large parcel costs twice as much to post as a small one. Work out the total cost of posting 3 small parcels, 9 medium parcels and 2 large parcels.

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