Answer: She earned $ 4 for each package delivered.
Step-by-step explanation:
Since, her total rate of earning = $ 12.50 per hours,
And, she worked for 8 hours.
⇒ She earned in 8 hours = 8 × 12.50 = $ 100
According to the question,
She delivered 25 packages in 8 hours.
⇒ 25 packages = 8 hours
⇒ 25 packages = $ 100
⇒ 1 package = $ 4
Thus, she earned 4 dollars for each package.