Question with scenario and numerical information attached - Another team of investigators embarked on a long-term study to assess the impact of

Question with scenario and numerical information attached - Another team of investigators embarked on a long-term study to assess the impact of levels of blood cholesterol in Native Americans on subsequent occurrence of myocardial infarction. They recruited 100 patients from three Indian Health Service hospital systems, and divided them into two groups based on cholesterol LDL/HDL ratio (high ratio is bad) - 42 in the high group and 58 in the low group. By the end of the fifteen-year follow-up period, 16 in the high group and 13 in the low group had experienced a myocardial infarction. 

What is the relative risk in this scenario? What is the P- value in this scenario? Please provide explanation as to how to calculate this. Thanks!