Dinah has $206.72 in her savings account. She deposits $45.10. How much is in her account now?

$251.82

Step-by-step explanation:

Deposit means to put into the bank account, so she adds $45.10 into her bank account. She already had $206.72 in her bank account, so add the two together.

< 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⭐

i belive those are the ones that are under 90 degreese.