If the x-values are increasing by 3, and the y-values are increasing by 5, what is
the slope?

a=5/3

Step-by-step explanation:

y=a*x

y+5=a*(x+3)

so 5=3a

a=5/3

< 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⭐