$($a$)$ Suppose that each chicken snack box is sold for K$12250\mathrm{.}00$ irrespective of the

number of units sold.

$($i$)$ Write down the equation of the total revenue function

$($ii$)$ Graph the total revenue function

$($b$)$ Given the demand functions for computers as $P=2400-0\mathrm{.}5Q.$

$($i$)P=1500$

$($ii$)P=1000$

$($c$)$ If the price of computers increases by $12\%,$ calculate the percentage change $i$

$n$ the quality demanded at:

$($i$)P=1500$

$($ii$)P=1000$