I think it is 0 because I googled it.
Ok I don’t use this to answer math questions
But you could use
Photomath in the AppStore
Answer:
○ B. 
Step-by-step explanation:
Starting from the origin, you do 
by moving four blocks <em>north</em> over one block <em>east</em><em> </em>[<em>west</em> and <em>south</em> are negatives].
* 4 blocks = 1 unit
I am joyous to assist you anytime.
Step-by-step explanation:
1) Angles opposite congruent sides in a triangle are congruent, so angle H is congruent to angle D.
2) For the same reason as the first problem, angle D is congruent to angle NSD.
3) Since sides opposite congruent angles in a triangle are congruent, segment AH is congruent to segment AS.
4) For the same reason as the third question, segment SA is congruent to segment SN.
1 is the only gcf of 4,37,51
