Estimate each number as a single digit times a power of ten. Drag expressions to complete the table. Each expression may be used once or not at all.

< 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⭐

8 2/3 is the answer

step-by-step explanation: just use a calculator

555.99.

step-by-step explanation:

hope this

the answer is a if my teacher taught me correct