[单项选择]Joe works two part time jobs. One week Joe worked 8 hours at one job, earning $150, and 4.5 hours at other job, earning $90. What were his average hourly earnings for the week ？（）
A. $8.00
B. $9.60
C. $16.00
D. $19.20
E. $32.00

[多项选择]PART TWO
Write an answer to ONE of the questions 2-4 in this part. Write your answer in 200-250 words.
Question 3
· A company you already do business with has recently created a new product line. Your department placed an order for the new product, but found that the product did not fulfill your requirements and that the after-sales service was poor. Your head of department has asked you to write a letter to the company informing them of your dissatisfaction.
· Write a letter, including the following information:
· what the order was for and when it was placed,
· why you are dissatisfied with both the product and the after-sales service,
· a reminder of business done with them in the past,
· what you expect in response to your complaint.