Respuesta :

3 GBs per month because you have to take 30-21 (the monthly cost of the phone)=9 and each GB is $3 a month so 9 divided by 3= 3

Answer:

i notice that she only has $30 to spend for a month. and she has to pay $21 every month including $3 for every download so she can only download 3 1GB of data

Step-by-step explanation: