Solve the Problem $6.468 \mathrm{~cm}$ Thick He Laminates the Metal Plate with Four More Layers

Multiple Choice

Solve the problem.
-A machinist has flat metal plate that is $6.468 \mathrm{~cm}$ thick. He laminates the metal plate with four more layers that are $3.964 \mathrm{~cm}, 3.530 \mathrm{~cm}, 3.156 \mathrm{~cm}$ , and $4.543 \mathrm{~cm}$ thick. He then grinds off $4.521 \mathrm{~cm}$ from the top of the plate, then $1.215 \mathrm{~cm}$ more, and finally another $4.643 \mathrm{~cm}$ . Find the new thickness of the plate.

A) $15.803 \mathrm{~cm}$
B) $22.754 \mathrm{~cm}$
C) $1.654 \mathrm{~cm}$
D) $11.282 \mathrm{~cm}$