I used 1 sheet each of Gold, Orange Red and Teal Blue (12 total flowers)
You will need:
Credit Card or piece of stiff plastic to smooth out bubbles
Pro Tip: If the tiles are cold and decals wont stick, apply the decal and without removing the adhesive transfer paper, gently heat with a hairdryer to warm both the tile and decal. Smooth out with your fingers and then remove the transfer paper.
I then laid out my decals how I want them on the back-splash. Always plan ahead, although our decals can be removed, they cannot be reused.