Suppose on friday night you have a choice to go either to a katy perry concert or a lady gaga concert. you won a free ticket to see katy perry. you would pay as much as $200 to see lady gaga perform, but tickets to her show cost $100 . assume that you end up going to the katy perry concert. since you went to the katy perry concert, you must be willing to pay at least $ to see katy perry.

Since you went to Katy Perry concert, you must be willing to pay at slightest $100 to see Katy Perry.  You want to go to Lady Gaga concert and you're prepared to pay as much as $200 to see her appear, indeed in spite of the fact that the section ticket expense is $100. This implies that, you simply must be willing to pay at slightest $100 to see another appear, in case you choose to grant up Lady Gaga show.

economic

yes he did writing dots to make the answer