Answer:
+15
-721
0
+462
-1200
The positives are because it said 'above sea level', the negatives because it said 'below sea level' and zero because it said 'sea level'.
5/7 which means for every 7 kids, one owns a dog
45
Step-by-step explanation:
76 - 31 = 45
The answer is x = -35