Answer:
0.1
Explanation:
Well, look at it like points to place on a graph, where the depth is your x and your pressure is your y. We'll look at (13, 2.3) and (17,2.7). 2.7-2.3=.4, and 17-13=4. So, we have 0.4/4, which simplifies to 0.1. So, you get .1 more pressure per meter.