Answer: gg < 3.375
Step-by-step explanation:
From the question, we are informed that Noah pays a flat cost of $66.50 per month and $4 per gigabyte and that he wants to keep his bill under $80 per month.
The inequality that can be used to determine gg, the maximum number of gigabytes Noah can use while staying within his budget will be:
66.50 + 4gg < 80
4gg < 80 - 66.50
4gg < 13.50
gg < 13.50/4
gg < 3.375