Question $2$

$($a$)$ An online sport store is selling table tennis balls according to the following pricing model. Each ball costs $$5\mathrm{.}50.$ For purchasing more than $12$ balls, each one after the first $12$ is at $$4\mathrm{.}50$ For purchasing more than $24$ balls, each one after the first $24$ is at $$4\mathrm{.}00$ Write a complete program to calculate the amount to pay given buying a number of table tennis balls. The Python program should read in the number as an integer, do the calculation, and then print out the total amount to pay.

e Convert the following if$-$else structure into an equivalent switch$-$case structure. int a$,$ bi if $($a $>5$ && a $<=9)*$ b $=2$: if $($a $==8)-$ b $+=3$:

Please use Python $to$ solve.