To maintain her income, susan must work 50 hours each week. susan works 7 hours on monday, tuesday, and wednesday, and 8 hours on thursday. if the variable t stands for the number of hours over the rest of the week susan will have to work to meet her goal, which of the following choices is the most reasonable value for t?

21

Step-by-step explanation:

-She needs to work 50 hours altogether. Since she works 7 hours on Monday, Tuesday and Wednesday, multiply 7*3= 21 hours all three days.

Plus the 8 she works on Thursday. 21+8= 29

So, 29 +  t = 50

     -29       -29 (subtract 29 from both sides)

You get 21.

She needs to work a total of 21 hours.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

< 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⭐