Assume in $1995,$ one Canadian dollar $($CAD$)$ bought USD$0\mathrm{.}95.$ In $2000,$ it bought about USD$1\mathrm{.}02.(15$p$)$a$.$ Find the CAD value of the USD in $1995.$ Find the CAD value of the USD in $2000.(8$ p$)$b$.$ What is the percentage rate of change $($depreciation or appreciation$)$ of the CAD relative to the USD between $1995$ and $2000?(7$p$)$