Where can the expressed powers of congress be found in the constitution?

What directive in source a might have been at the root of the action described in source b?

The sahel is located on the edge of the sahara desert. a.north b.west c.south d.east

Determine whether the following descriptions belong to michelangelo, raphael, or both. important works include school of athens was a renowned artist of the italian renaissance served under the patronage of pope leo x important works include the sculpture la pieta