simplify the following radical expressions. choose the answer that best simplifies radical expression

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

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How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits