Could you try sending the picture again? I don't see anything. Sorry.
Answer:
12, -12
Step-by-step explanation:
sqrt(144)
What number times itself = 144
12*12 = 144
Also -12*-12 = 144

64% of 75 tiles is 48 tiles.
Felt appears to be right triangles
A appears to be an equilateral triangle
He did not divide his milligrams by the proper factor. He treated it as if it were only kilograms. He should have divided by a million.