27 yd2 (b•h) it’s just like a rectangle
Answer:
28
Step-by-step explanation:
If the sub is closer to the surface later, we thus know that it traveled upwards.
<h2>
Answer:</h2>
720 pounds
<h2>
Step-by-step explanation:</h2>
Initially, we have that the amount of algae in the pond is
. Every four hours the amount of algae doubles. If we called
the time and
the amount of algae, we have that:

Finally, <em>after 12 hours the amount of algae in the pond is 720 pounds</em>