What is Mark's average weekly wage if he works 40 hours a week at $20 per hour?

To determine Mark's average weekly wage, you start by calculating his total earnings for the week based on his hourly wage and the number of hours worked. Mark earns $20 per hour and works 40 hours in a week.

The calculation would be as follows:

Hourly Wage ($20) x Hours Worked (40) = Total Weekly Wage

So, if you multiply:

$20 x 40 = $800

This means that Mark earns a total of $800 per week. This figure represents his average weekly wage based on the hours he works and his hourly pay rate. To summarize, by multiplying the hourly rate by the number of hours worked, you arrive at the correct answer.