Answer:
about seven
Step-by-step explanation:
the answer to the equation is 7.25, estimate that and you get 7
You should try C I’m not sure but try I guess!
Answer:
yes,this is congruent by SAS criteria
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
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