Sally hires a maid to work in her home for $280 per month. The maid is 25 years old and not related to Sally. During 2018, the maid worked 9 months for Sally. 

a. What is the amount of Social Security tax Sally must pay as the maid’s employer?  

b. What is the amount of Medicare tax Sally must pay as the maid’s employer? 

c. What is the amount of Social Security and Medicare tax which must be withheld from the maid’s wages?