If Zoe and Bijou can paint a room in 3.733 hours and Zoe, working alone, can paint the room in 7 hours, how long will it take Bijou to paint the entire
mural by herself?( round to the nearest integer)

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

< 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⭐

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: