Final answer:
To earn $102 or more, Shawna needs to work at least 8 hours.
Step-by-step explanation:
To find out how many hours Shawna needs to work to earn $102 or more, we can set up an equation using the hourly rate and the total amount she wants to earn:
12.75x ≥ 102
To solve for x, we divide both sides of the inequality by 12.75:
x ≥ 102 ÷ 12.75
This gives us the answer: x ≥ 8 hours. So Shawna needs to work at least 8 hours in order to earn $102 or more.
Learn more about hours worked to earn a certain amount