Respuesta :
a.
Scottie = 30
Top of the lighthouse = 45 (30+15)
The boat = 0
The fish = -10
b.
10 + 30 = 40
The addition is one of the four fundamental mathematical operations. The Scottie is 40 meters below away from the fish.
What is Addition?
The addition is one of the four fundamental mathematical operations, the others being subtraction, multiplication, and division. When two whole numbers are added together, the total quantity or sum of those values is obtained.
The representation of the locations in relation to sea level can be made as,
Scottie = 30 meters above the sea level = +30 meters
Top of the lighthouse = 45 meters above the sea level = +45 meters
The boat = at sea level = 0 meters
The fish = 10 meters below sea level = -10 meters
B. The Scottie is 40 meters below away from the fish.
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