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The billing department at a toy comany sent out 70 invoices on Monday, 66 invoives on Tuesday, 103 invoices on...
The billing department at a toy comany sent out 70 invoices on Monday, 66 invoives on Tuesday, 103 invoices on Wednesday, 60 invoices on Thursday, and 74 invoices on Friday. How many invoices were sent out in this 5 - dau period?