Carlos's grade in Algebra 1 varies directly with the number of hours he spends
studying. Carlos spent 2 hours studying for
last week's quiz and he scored a 40 on the
quiz. What score will he make if he studies
for 5 hours?

< 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⭐

the answer is 8/21

hope this