Um, well, you didn't give enough information obviously, because from what <em>we</em> can see, you already have the answer. If the value of PT is 3x+6, then your answer is 3x+6 :P
Answer:
No.
Step-by-step explanation:
No, Bob is not correct.
The formula he's using is the following:

The important thing here is that the angle is between the two sides.
In the given triangle, 120 is not between 8 and 18. Therefore, using this formula will not be valid.
Either Bob needs to find the other side first or find the angle between 8 and 18.
Answer:
b
Step-by-step explanation:
The answer to the first one is 2 yards and the second one is 49 sq ft
Answer: 4 and 8.
Step-by-step explanation: I believe. O-o