Respuesta :
					                   d-20 would be the variable expression for the amount of money Mia has. 
					                
					                
					             Mia has $20 dollars less than Brandi. Brandi has d dollars.
$20 less than d = Subtract 20 from d
20 less than d = d - $20
Your answer is d - $20
 
			                   
					                  