Chapter 29, Problem 32P

A British pound cost $\$\text{2}.00$ in U.S. dollars in $\text{2}00\text{8}$, but $\$\text{1}.\text{27}$ in U.S. dollars in $\text{2}0\text{17}$.

Was the pound weaker or stronger against the dollar? Did the dollar appreciate or depreciate versus the pound?