Question 978801
The "a" is a subscript
given that loga11=2.398 and loga5=1.609 evaluate loga 11/5

start with:
loga 11/5
this is equivalent to:
loga 11 -  loga 5
substitute the values given we have:
2.398 - 1.609
0.789  (which is 'c')