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What is the sentinel value in the following loop? Declare Numeric invoiceNum Declare Numeric genvalue Display Enter an invoice number or -1 to quit:
What is the sentinel value in the following loop? Declare Numeric invoiceNum Declare Numeric genvalue Display "Enter an invoice number or -1 to quit: " Input invoiceNum While invoiceNum != -1 [more processing statements) Display "Enter another invoice number or -1 to quit: " Input invoiceNum End While invoiceNum Input BenValue -1
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