Answer:
Billy will be Zero (0) snowboard
Step-by-step explanation:
Billy won't be buying any snowboard because Billy's willingness to pay for one snowboard is $250 and for a second snowboard is $400, both of which are under the prevailing market price of $500. If Billy wants to get the snowboard, he must be willing to pay the market price if $500. With him not willing to pay that amount, Billy would not buy any snowboard.