Answer: The first graph
Step-by-step explanation:
It's the first one. I don't know how to explain, haha.
Both 25x and 22x + 9 have the same answers. So you set those two equal to each other.

Subtract 22x from both sides.

and you're left with this.
Next, divide 3 from both sides.

re-insert 3 into one of the equations.

add up both angles

all angles (for quadrilaterals)added up equals 360.

solve for x. Subtract 150 from both sides.

and divide 2 from both sides

AngleLMN= 105
Answer:
A
Step-by-step explanation:
If you have to add 2 to X to get it back to the original, it started out 2 to the left. (It would seem like it ought to be C, but when you add an subtract from the x value in functions, it's opposite of what you might think.)
Let A represent the amount Ann contributed, Z represent Zoe's contribution, and J represent Jim's contribution toward the present.
Ann (A): A
Zoe (Z): A = Z - 12 → Z = 12 + A
Jim (J): A = J - 16 → J = 16 + A
A + Z + J = 154
(A) + (12 + A) + (16 + A) = 154
3A + 28 = 154
3A = 126
A = 42
Ann (A): A = 42
Zoe (Z): Z = 12 + A = 12 + 42 = 54
Jim (J): J = 16 + A = 16 + 42 = 58
Answer: Ann=42, Zoe=54, Jim=58