2.
Display the data in a matrix A with rows indicating years. What is element a14?

The answer to your question is:     11 < pH < 14

Step-by-step explanation:

Data

Bleach have a pH  less than 14 and greater than 11.

We have to use these symbols:

                                                     <  greater than       >  less than

and pH will be  in the middle

                                          11 < pH < 14

This inequality means the Bleach has a pH between 11 and 14