Kyle has 3 times as many marbles as Curtis.
Curtis has 5 times as
many marbles as Robert.
Robert has half as many
marbles as Arnold. What
is the ratio of the Kyle's
marbles to Arnold's
marbles and why?

< 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⭐

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: