Answer:
it is at sea level because 0 meters above sea level indicates that it has not changed from sea level
I’m pretty sure the answer is u<19
1/8
3 divide by 3=1
24 divide by 3= 8
which gives you 1/8
I'm going to assume you just mean how do you write the ratio, in which case the answers vary
18:6
18 to 6
or
18/6