human
On Monday Elisa paints 30 square feet of her house's walls. On Tuesday she paints twice that amount. On Wednesday she finishes up by painting half as many square feet as she painted on Monday. How many square feet total does Elisa paint in her house?
assistant
How many square feet does Elisa paint on Monday? ** On Monday Elisa paints 30 square feet of wall.
How many square feet does Elisa paint on Tuesday? ** She paints 2 x 30 square feet on Tuesday = <<2*30=60>>60 square feet of wall.
How many square feet does Elisa paint on Wednesday? ** On Wednesday Elisa paints 1/2 as many square feet as she painted on Monday, 1/2 x 30 square feet = <<1/2*30=15>>15 square feet of wall.
How many square feet does Elisa paint in her house? ** In total, Elisa paints 30 + 60 + 15 = <<30+60+15=105>>105 square feet of wall.
#### 105