Acertain car model was expected to fet 542 miles on 21 gallons of gas. what was the average number of miles per gallon?

25.81 miles per gallon

Step-by-step explanation:

To find how many miles per gallon you have to divide the total amount of miles by the amount of gallons.

So 542/21 is 25.809

25.809 can be rounded to 25.81 miles per gallon.

< 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⭐

irrational, cannot