Each month I pay for three GB of data on my cell phone plan. Does this mean I always have to use exactly three GB's of data? Can I go over three GB's of data?

Step-by-step explanation:

no you don't have to use it all but you can't use anymore, but it may depend on the plan because some plans do allow you to go over but you have to pay more.

you can use as much of the 3gb as you want and don't need to use it all.

- (2, -7)

- lines r and s and lines t and u must be parallel