Answer:
46
Step-by-step explanation:
180-134=46
They're both 46 degrees
Angle b and 134 are right next to each other so they're supplementary and have to equal 180 degrees.
180-134=46, and since Angle c is is a vertical angle with Angle b, it also equals 46^^
Answer: r= -3
Next 3 terms following 54 are -162, 486, -1458