Answer:
you would need just 4 equation
At&t because it costs let than Verizon and still gives you the ability to make 50 calls per week.
The domain and the range of the function are all possible values of the x and y, respectively, that function can take.
The range is given by:
The domain is given by:
At the end of the January the balance of credit card need to be $498+$35=$533
$533 is more than one half of the $900. So at the end of the January.