What models the relationship between two variables in a data set by producing a line of best fit

12

Step-by-step explanation:

All you is divisions as followed:

100 ÷ 8 = 12

< 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⭐

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons