Answer:


Step-by-step explanation:
We need to simplify

We collect LCM to get;

Therefore:

Also we need to simplify:

We collect LCM to get;

Therefore

Answer:
D
Step-by-step explanation:
You first add 4 to all of the numbers giving you 7, 24, 41, and 49. Only choice D is a perfect square. for reference, 7*7=49
Answer:
Since it is an equilateral triangle, all sides are 10cm
Step-by-step explanation:
Elbert frank cox? I think
Answer:
72, you could've searched it up but have a good day
Step-by-step explanation: