The Sum of the Squares of the Digits of a Positive

question 149

Multiple Choice

The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.

• A) 53
• B) 42
• C) 35
• D) 24

Understand the differences between neoclassical and ecological economic views on natural resources.

Recognize economics as the study of decision-making with limited resources.

Identify the role and importance of Earth's natural goods and services.

Understand the concept of marginal cost in the production of goods and services.

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