Astore sells t-shirts for $10 each and jeans for $20 a pair. anna spends $150 on t-shirts and jeans. she buys x t-shirts and y pairs of jeans. the equation that represents the situation is . if anna decides to buy only t-shirts and no jeans, she can buy t-shirts with the money she has. nextreset

10x + 20y = 150 and she can buy 15 t-shirts

< 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⭐