The ornamental design for a plate, substantially as shown and described.
FIG. 1 is a forward perspective view of an embodiment of a design for a plate.
FIG. 2 is a rearward perspective view of the embodiment of a design of FIG. 1.
FIG. 3 is a front plan view of the embodiment of a design of FIG. 1.
FIG. 4 is a side elevation view of the embodiment of a design of FIG. 1; and,
FIG. 5 is a top elevation view of the embodiment of a design of FIG. 1.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.