The easiest way is if it doesn't need to be simplified. Multiply -2.105 by

. You get the fraction

. While this is technically the answer, you can simplify this down to

. Because 421 is a prime number, this can not be simplified any further. Therefore, the solution is

.

.
Answer:
C.
Step-by-step explanation:
c is the only one that even makes sense
Answer: H=3
^ I noticed you need help on this one the answer is very simple
Answer:
what is the square root of 180x^9 y^16 in simplest form
Step-by-step explanation:
Answer:
B and D
Step-by-step explanation:
I don't have much of an explanation, but I remember from taking geometry that those two angles are the same measurement because they're congruent interior angles. hope this helps :)