Please help Gigi has $330 in her account and she can save an additional $30 every week.
Lala has $780 in her account and she is spending $20 every week.
How many weeks will it take for Gigi to have the same balance in her account as Lala?

c

step-by-step explanation:

$35.59 in pounds

step-by-step explanation:

< 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⭐