Answer:
Fiona earns $2/hour more than Philip.
Step-by-step explanation:
y = 12x shows a slope of 12. That slope is the hourly salary.
Philip earns $12/hour.
Fiona:
$42/(3 hours) = $14/hour
Fiona earns $14/hour
14 - 12 = 2
Fiona earns $2/hour more than Philip.
