Conversation so far:
how many tsp are in a packet of sugar
According to Domino Sugar, one sugar packet is the equivalent of 1 teaspoon of granulated sugar
how many cups is a pound of granulated sugar
A pound of granulated sugar measures out to just about 2 and one-fourth cups.
how many teaspoons of granulated sugar are in a cup
There are 48 teaspoons of granulated sugar in a cup
how many cups of granulated sugar does a standard 100-packet box contain
A standard 100-packet box of granulated sugar packets would contain just over 2 cups of granulated sugar

Question: are confectioner's sugar and brown sugar measured the same way
Self-contained rewrite: are confectioner's sugar and brown sugar measured the same way as granulated sugar