Martin earns $7.50 per hour proofreading ads at a local newspaper. His weekly wage w can be described by the
equation w = 7.5h, where h is the number of hours worked.

< 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 48m^2!

step-by-step explanation: