Respuesta :
					                   The answer is C 24 if you plug in 33 33 = 9 + b you have to subtract the 9 over to 33 to get 24
					                
					                
					             
					                   C. 24 
If Oliver runs 9 minutes more, and we already know how long he ran, then we need to do the opposite of the equation, which is to subtract instead of add. 33-9=24
					                
					             If Oliver runs 9 minutes more, and we already know how long he ran, then we need to do the opposite of the equation, which is to subtract instead of add. 33-9=24
 
			                  