The problem in the image asks:

"Crystal works 6 hours on Tuesday, 7 hours on Wednesday, and 3 hours on Friday. She earned a total of $472. Which expression can be used to find her hourly rate of pay?"

To solve this, we first need to find out how many total hours Crystal worked in the week:

$6 + 7 + 3 = 16 \text{ hours}$

Next, since she earned $472, the hourly rate of pay $r$ can be found by dividing the total amount earned by the total hours worked. The expression that represents this is:

$\frac{472}{16}$

Therefore, the correct expression is $\frac{472}{16}$, which matches the last option shown in the image.

Would you like a further explanation, or do you have any questions?

Here are 5 related questions:

1. How do you calculate the total earnings if the hourly rate and total hours worked are given?
2. What would Crystal’s total pay be if she worked 20 hours instead, with the same hourly rate?
3. If Crystal worked 8 hours on Thursday, how would the expression change?
4. What is the hourly rate if she earned $500 for 20 hours of work?
5. How would you write the equation to solve for her hourly rate if her earnings were unknown?

Tip: Always ensure that the total hours worked are correctly added before calculating the hourly rate.