(Solved): A bakery works out a demand function for its chocolate chip cookies and finds it to be \( q=D(x)=87 ...

A bakery works out a demand function for its chocolate chip cookies and finds it to be \( q=D(x)=874-13 x \), where \( q \) is the quantity of cookies sold when the price per cookie, in cents, is \( x \). Use this information to answer parts a) through \( \mathrm{f} \) ). a) Find the elasticity.