Under his cell phone plan, Ian pays a flat cost of per month and per gigabyte. He
wants to keep his bill at per month. Which equation could be used to determine , the
number of gigabytes of data Ian can use while staying within his budget?
Answer

To find out how many gigabytes of data Ian can use without exceeding his budget, we can break it down into a simple equation. Since he pays a monthly flat fee of and per gigabyte, the total cost equation becomes . By rearranging this, you can isolate to find out the maximum gigabytes he can use.

Once you have the total equation set up, don’t forget about the importance of double-checking your calculations! A common mistake could be misplacing the values in the equation or forgetting to subtract the fixed cost from the total budget. By correcting these slip-ups, you can make sure Ian effectively manages his cell phone expenses without going over budget!