During a free fall, a skydiver falls 16 feet in the 1st second, 48 feet in the 2nd second, and 80 feet in the 3rd second. If she continues to fall at this rate, how many feet will she fall during the 8th second?
She will be falling
This is an arithmetic sequence, so a number of feet is added on to her fall for each second that she is in the air. This number, also know as the common difference is
We can use the formula
Hopefully this helps!