Kat earns $3.50 an hour walking the dogs.

a) Write a rule to describe how the amount of money m earned is a function of the number of hours h spent walking dogs. Use the table to help you write the function rule.
Function rule:

b) How much does Kat earn if she works 2 hours and 30 minutes?

a) The function rule is m = 3.50h, where m is the amount of money earned and h is the number of hours spent walking dogs.

b) To convert 2 hours and 30 minutes to decimal form, we divide 30 minutes by 60 (the number of minutes in an hour) to get 0.5. So, Kat works 2.5 hours.

Using the function rule, we can calculate how much Kat earns:
m = 3.50(2.5) = $<<3.50*2.5=8.75>>8.75

Therefore, Kat earns $8.75 if she works 2 hours and 30 minutes.