Sentinels are data values used to signal either the start or the end of a data series.

Which part of the CPU is specifically designed to perform mathematical operations?

a. fetch module b. ALU c. registers d. cache memory

If you use the Create new fill or adjustment layer button on the Layers panel, you will see three additional menu items: Solid Color, Gradient, and ____________________.

Fill in the blank(s) with the appropriate word(s).