Can Bermuda triangle be a tunnel of space-time​

The graph shows median weekly earnings for full-time workers according to education level. which can you not conclude?

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.

In excel - calculate the actual increase/decrease from first quarter to the second quarter then subtract subtract first quarter value from second quarter total then divide result by first quarter value