Respuesta :

1. when r = 0,
the expression becomes (5(0)+ 1/5)^2
= (0+1/5)^2
= 1/5^2
=1/25

2. divide the number of people by 80
saturday: 1210/80
= 15.125
= 15 as you can’t have 0.125 gift cards
sunday: 1814/80
= 22.675
= 22 - same logic as saturday