The Supreme Court decisions in McCulloch v. Maryland (1819) and in Gibbons v. Ogden (1824) resulted in

The "separate but equal" doctrine was established.

Explanation:

:)

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.

i’m   sure probably just geuss and see which one you can get right, i’m pretty sure it is the combination of goods and services