Using this information for Eagle Bank and Trust Company (all figures in millions), calculate the bank's net interest margin, noninterest margin, and ROA.
Interest income........... $ 75
Interest expense........... 61
Provision for loan losses....... 6
Security gains (or losses) ...... 2
Noninterest expense.......... 8
Noninterest income........... 5
Extraordinary net gains....... 1
Total assets............ 1,000