Maybe the one where the are facing eachother?
Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
704 ( I'm assuming this is rectangular prism )
Follow this formula:
width x length x height = volume
Base is height x length so half of the problem is solved. Next just multiply that by the width and you found your answer.
