(Picture) Please help me

Equation A:

(x + yi) + (4 + 6i) = 7 - 2i

⇔ x + yi = 7 - 2i - 4 - 6i

⇔ x + yi = 3 - 8i

⇒ x = 3

   y = -8

Equation B:

(x + yi) - (-8 + 11i) = 5 + 9i

⇔ x + yi = 5 + 9i + 11i - 8

⇔ x + yi = -3 + 20i

=> x = -3

   y = 20

Step-by-step explanation:

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

(−$11) ⋅ 12

deductions are subtracted and there are 12 months in a year