120, 90, 30 if you're going from the depths of the water to water level
The answer would be 4c^2+8c+3
The arrow stands for squared off you didn’t already know but these are very easy to solve because you just multiply it out
Answer:
what
Step-by-step explanation:
why would you even need to know this
5 x 5/2 = 25/2
answer
25/2 units