Find All Replacements (Less Than the Modulus) for the Question

question 76

Multiple Choice

Find all replacements (less than the modulus) for the question mark that make the statement true.
-2 - ? ≡ 9 (mod 9)

• A) 2
• B) 7
• C) 3
• D) 4

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Definitions:

Gross Profit

The difference between revenue and the cost of goods sold, indicating the efficiency of a company in producing and selling its products.

Operating Expenses

Costs associated with the day-to-day functioning of a business, such as rent, utilities, payroll, and materials, excluding the cost of goods sold.

Income from Operations

Income from Operations represents the profit earned from a firm's core business activities, excluding deductions of interest and taxes.

Purchase Invoice

A document received by a purchaser confirming the sale of goods or services and indicating the quantities, prices, and terms of sale.