The ornamental design for a tile, as shown and described.
FIG. 1 is a front perspective view of my new design for a tile;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof; and,
FIG. 8 is a right side elevational view thereof.
The broken lines in FIGS. 1-4 and 6-8 superimposed on the surface of the tile represent the bounds of the claimed design. The remaining broken lines in FIGS. 1-8 are environmental and for illustrative purposes only. The broken lines form no part of the claimed design.