help pls

A new restaurant is opening and recently hired a large group of new staff. The HR specialist is concerned that the hiring trends may have violated the 4/5 rule. The restaurant hired 12 Caucasian servers and 23 African-American servers. A total of 120 Caucasian and 210 African-American applicants applied for the positions. What is the African-American/White impact ratio? Answer in decimals (e.g., .xx). Round your final answer to two decimal places