Geometry help please and thank you

125°

Step-by-step explanation:

By exterior angle theorem:

(3x - 70)° = 60° + x°

(3x - 70)° - x°= 60°

(3x - 70 - x)° = 60°

(2x - 70)° = 60°

2x - 70 = 60

2x = 60 + 70

2x = 130

x = 130/2

x = 65

(3x - 70)° = (3*65 - 70)° = (195 - 70)° = 125°

i think it is

step-by-step explanation:

a formal letter is a letter the you would send to a king

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8