The first one that's the answer the reason for that is because it's the formula to find the area if you do it backward you can find the side legnth
Answer:
A square root of 16 is 4 would represent the truth value. The only square root of 9 is -3 is not true because the square root of 9 could be 3 or -3.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
It increased by 100%.
This is the formula for future problems like this
(new cost - original price) / original price