Michelle used a 20 bill to pay for a notebook that only costs p dollars. How much change did Michelle receive from the cashier?
Write your answer as an expression.

20-p

Step-by-step explanation:

this is ur expression for how much change she will get back

20-p

Step-by-step explanation:

cause she has 20 dollars and buys p notebooks so her total 20 dollars and -p note books

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.

< 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⭐