Shark Inc. has determined that demand for its newest netbook model is given by , where q is the number of netbooks Shark can sell at a price of p dollars per unit. Shark has determined that this model is valid for prices . You may find it useful in this problem to know that elasticity of demand is defined to be

Your answer should only be in terms of .

What price will maximize revenue. If the price is less than 100, write 'NA'.

You can earn partial credit on this problem.