Respuesta :

Exact Form:

d

=

7

47

2

,

7

+

47

2

d

=

-

7

-

47

2

,

-

7

+

47

2

Decimal Form:

d

=

0.07217269

,

6.92782730

Answer: 20

Step-by-step explanation:

d=-2

Plug in to get 4(-2+7)

Do what's in () -2+7=5

Then multiply 4(5)=20