Match the equation with the step needed to solve it.

1. 2m - 1 = 3m
2. 2m = 1 + m
3. m - 1 = 2
4. 2 + m = 3
5. -2 + m = 1
6. 3 = 1 + m

-subtract 1
-subtract 2
-subtract m
-add 2
-subtract 2m
-add 1

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

i will pick c put check it over to be sure

step-by-step explanation: