hi,
first let's count the marbles : 1+3+2 = 6
so picking a red is 1/6
a green is : 3/6
a bleu is : 2/6
Interior angles of a triangle should always add up to 180.
180-154=26
26-13=13
X=13
Answer:
you plug in the 3. so you get y= 3-4 which is -1
The absolute value of 4/13 is 4/13 because when you put something in absolute value it becomes positive and sense this is already positive it stays. hope this helps :))))