You were charged $51.50 last month for data usage on your smartphone. your data plan charges a monthly fee of $20 plus $2.50 for each extra gigabyte (gb) used. how many extra gigabytes did you use last month?

20 + 2.5g = 51.50
2.5g = 51.50 - 20
2.5g = 31.50
g = 31.50 / 2.5
g = 12.6 <=== there were 12.6 extra gigabites used

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good