Pls help asap no wrong answers plsss

ok...so i think what you have to do is dived 310 bc its the toltal number of weight by 30 witch is the weight of each box and it makes 10.33333333333333

Step-by-step explanation:

310/30=10.33333333333333

< 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⭐