Answer
See below.
Work Step by Step
a) By plugging in $n=10$ into the formula: $p(10)=100(0.97)^{10}=\approx73.74$
b) By plugging in $n=25$ into the formula: $p(25)=100(0.97)^{25}=\approx46.7$
c) The meaning of it is that each pane allows only $97\%$ of the light to pass through.
