Mariana signed up for a streaming music service that costs $7 per month. The service allows Mariana to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $1.25 per song. How much total money would Mariana have to pay in a month in which she downloaded 40 songs? How much would she have to pay if she downloaded s songs?

50$

Step-by-step explanation:

$1.25x40= 50 so she would have to pay 50$

x=4

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

⭐dhruv⭐