You get a "sum" when you add numbers together.
25, 400 and 144 are all square numbers and 24, 300 and 145 are not.
Therefore, he must like 1600
Substitution.
Elimination.
Using a Combination of methods.
Using absolute value
I hope this helps!
Answer:
Step-by-step explanation:
Temperature is the abiotic factor that is changing the ecosystem. Both the top layer temperature and the overall temperature of the lake are increasing. The warmer temperatures have delayed the yearly springtime mixing of warm and cold water in the lake.
