Fifty-five delegates gathered in 1787 for the expressed purpose of revising the articles of confederation. instead, they created a new constitution. this constitutional convention took place in the city of: a. boston. b. new york. c. philadelphia. d. trenton.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.