Debbie and amy begin reading a book on the same day debbie read nine pages a day and is on page 72 amy read six pages a the day what page is amy on

48     To do this we must find the day. 72/9=8   They are on day 8.  Now multiply 8 days by 6 pages 8*6=48.

Amy is on page 48.

< 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⭐