Respuesta :

MeganLouise

a) Rainbow phone: c=100+6x

Cellular phone: c=80+10x


b) make the equations equal to each other:

100+6x=80+10x

20=4x

5=x


5 GB over


c)if x=6

Rainbow: 100+(6 x 6)= $136

Cellular: 80+(10 x 6)=$140


Therefore rainbow will save them the most money
Rainbow will save them the most money best answer