Is 28/7 a integer? yes or no

yes,

yes

Step-by-step explanation:

28/7 is an integer because integers are whole numbers and 28/7 can be converted into a whole number

28/7=4

7x4=28

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; )

step-by-step explanation: ; )

< 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

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