okay! the perimeter is the total we're going to be constructing an equation for, so it'll be on the right side of the equals sign.

? + ? = 18

now, we know that it's twice (or 2x) as long as it is wide. this can be represented by 2l, or 2x. the variable doesn't matter.

2l + ? = 18

what about the other unknown? well, the width is unaffected in this equation. so all you have to do is substitute it in!

2l + w = 18

this is the equation we come up with given the limited information.

if this helped, make sure to thank me and rate me, and maybe give me brainliest if i /really/ helped! good luck!

1. temperature is dependent

2. energy is independent

3. the graph looks like a line sloping upward

4. the line means that as energy increases the temperature also increases

5. a straight line would mean that as energy increases temperature remains constant

sorry that's all I can do

2. energy is independent

3. the graph looks like a line sloping upward

4. the line means that as energy increases the temperature also increases

5. a straight line would mean that as energy increases temperature remains constant

sorry that's all I can do

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