3b+9-16=-56
how do you do this?

Step-by-step explanation:

Get all the numbers to one side, leaving the 3b alone.

3b+9-16= -56

3b= -9+16-56

3b= -49 divide by 3

b= -49/3

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40