Adjustable Rack

FIG. 1 is a top perspective view of an adjustable rack, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is an enlarged detail view of left side thereof;

FIG. 5 is an enlarged detail view of right side thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view.

The broken lines in the drawings illustrate the portions of the adjustable rack, which form no part of the claimed design.