What is the number 57 in two ways?

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16