Use a calculator to evaluate the expression to the nearest tenth of a degree, if necessary. 
__________°
Definitions:
Midlife Working Years
A stage in adult development typically characterized by employment and productivity, often occurring between the ages of 40 and 65.
Rich Countries
Nations with high gross domestic product (GDP) per capita, indicating significant economic wealth and standard of living.
Poor Countries
Nations characterized by low levels of income, economic activity, and development.
Happiness
A scenario of health and happiness characterized by emotional states stretching from gratification to intense delight.
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