Everything looks good, but I would write LJ = LJ (or JL = JL) for line e just so it's clear you're talking about the same line segment.
Though to be fair, JL is the same as LJ so it really doesn't matter. I guess it will depend on how picky your teacher is.
Also, I almost forgot, but line c should have angle markers so that your teacher knows you are talking about two angles.
Answer:
24/2=12
12*49=588 cm
=5.88m
Step-by-step explanation:
Answer:

Step-by-step explanation:
The Exponential Product rule tells us that...

Therefore,
.
Therefore, 
Multiplying 34x 17 and you will get answer