Respuesta :
					                   Tara bought 2 bottles for 15 day.
Total bottles bought = 15 x 2
Tara bought 7 bottles on the 16th day:
Total bottles bought = 15 x 2 + 7
Answer Total bottles bought = 15 x 2 + 7
					                
					             Total bottles bought = 15 x 2
Tara bought 7 bottles on the 16th day:
Total bottles bought = 15 x 2 + 7
Answer Total bottles bought = 15 x 2 + 7
