Respuesta :
t= time
b= 1 booth (7b = 7 booths)
x= total time (unknown)
1/2 hr ( 30 minutes) * 7 booths = 30*7= 210 minutes
210 minutes / 60 minutes (an hour) =3 1/2 hours
b= 1 booth (7b = 7 booths)
x= total time (unknown)
1/2 hr ( 30 minutes) * 7 booths = 30*7= 210 minutes
210 minutes / 60 minutes (an hour) =3 1/2 hours