The price$-$demand equation is given by $x+p=60000.$

a$.$ Write demand as a function of price.

$f(p)=$

b$.$ Find the elasticity of demand at a price of $$20,000$ rounded to $2$ decimal places.

c$.$ If the price increases $3\%$ from a price of $$20,000,$ what is the approximate $($percentage$)$ decrease in

demand? Round to $2$ decimal places.

$\%$ decrease