Refer to the diagram. At output level Q total fixed cost is:

Veruca sells therapeutic bath salts on the Internet. Her annual revenue is $52,000 per year, the explicit costs of her business are $14,000, and the opportunity costs of her business are $17,000 per year

What are the implicit costs of her business? A) $14,000 B) $17,000 C) $21,000 D) $31,000

In 2017, the average life expectancy at birth in the United Kingdom and other high-income countries was around ________ years

A) 60 B) 70 C) 80 D) 90