Exponential functions

Please answer both questions thoroughly and explain each step you took to find the answer.

1) Shrink a 10 Croatian Kuna by 60%. How many times would we have to shrink it so that it fits on a One Euro coin?

2) A giant ball is dropped off of the roof of the Empire State Building and bounces back to 44% of its height per bounce. How many bounces would it take for it to bounce approximately as high as the Golden Buddha?