Rewrite in simplest terms: -0.2t - 5 (-8t + 5)

< 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⭐

step-by-step explanation:

where is abdul's work? don't see that anywhere posted : /

step-by-step explanation:

add 8+12 to get a simplified answer of 12r-20