I assume that you mean: the length is 7cm more than the width, and the perimeter is 74 cm.
If so, we can write down the following system, where l and w represent, respectively, the length and the width:

We can easily solve the second equation:

And finally solve for the length:

The answer is D. Linear equation
Answer:
D
Step-by-step explanation:
i did it on khan
With a line plot. i think
Where is it ?... i dont see nun