Answer:

Step-by-step explanation:
Given:
The equation is given as:

Therefore, the possible values of
are 2 and 
Answer:
i am pretty sure the answer is UT.
Step-by-step explanation:
this is because all the letters have linear connections to the other letter, all except UT do.
i hope this helps, tell me if this is wrong.
Number 5a. is 26.78 and 5b. is 8.5