Does anyone know how to get stains off of concrete?

My wife painted some stuff on the patio and did not put anything down to catch the excess paint. Mostly acrylic paint used, a little spray paint.

She also spilled some minwax wood stain.

Any help would be greatly appreciated.

Submitted March 28, 2016 at 11:38AM by Mandalorianfist http://ift.tt/21Oy3bE