Respuesta :

360 or 22.5 one of those
gustanika
First, calculate are of one paper
area = l × w
area = 9 × 10
area = 90 in²

Second, calculate area of 4 papers
area = 4 × area per paper
area = 4 × 90
area = 360 in²

Total area of Erica's banner is 360 in²