Perimeter Formula:

Area Formula:

Set perimeter Formula equal to b:

Plug formula for be we just made above into the area Formula:

Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.
Here's a link to where the problem has been explained before (they go into more detail than me).
https://brainly.ph/question/468631
lmk if you need any more help
Answer:
I think its a,c,d,f, and g
Answer:
50
Step-by-step explanation:
.80n = 40
n = 40 divided by .80
40/8/10 = 400 / 80 = 50
Best Of Luck,
- I.A. -
Answer:
-3+6
Step-by-step explanation:
-3+6
6-3=3
Answer:
I can't understand.. can you add pictures also