ScottsTurf Builder Lawn Food, Fertilizer for All Grass Types, 15,000 sq. ft., 37.5 lbs.

What is the N-P-K ratio printed on the 15,000 sq ft bag?

Sprayer questions? I'm not sure if the folks who reviewed had the same problem. but the sprayer has 3 settings. Off/water/on.

Does it stain concrete

Will this product help restore my lawn from some brown spots back to green??