I need help with this ASAP

n = -9/2 = - 4 1/2

Step-by-step explanation:

-11 - 2 1/4n = -7/8

-9/4n = -7/8 + 11

-9/4n = 88/8 - 7/8

-9/4n = 81/8

n = 81/8(-4/9)

n = 9/2(-1)

n = -9/2 = - 4 1/2

< 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⭐

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0