ason decided that he will sell his stocks if their values per share (x) goes below $5 or above $15.

Jason decided that he will sell his stocks if their values per share (x) goes below $5 or above $15. Write a compound inequality represents the values at which Jason will sell his stocks?

Below $5 is also known as less than $5:
x < 5

Above $15 is also known as greater than $15
x > 15

We write the compound inequality:
x < 5 U x > 15