Possible to put dynamic text in a graphic?

programming flash
1 

            this.upgradeMC = new Sprite();
            var g :Graphics = this.upgradeMC.graphics;
            g.lineStyle(1, 0x454545);
            g.beginFill(0xaaaaaa);
            g.drawRect(0, -25, 100, 50);
            g.endFill();
                        
            this.upgradeMC.x += 50;
            //this.upgradeMC.y = 0;
            this.addChild(this.upgradeMC);

The above draws a grey, clickable box that appears when a button is clicked in my game. It will not always be in the same spot on screen and I need to have this box labeled with with text that is not always the same. I can’t find a graphic function like drawText so is there a way to do this?