The equation that could be used to determine the unknown side length, M of the logo is A = 7M
From the question, we have the following parameters:
Represent the area of the logo with A, and M represents the unknown side
The area (A) of the rectangle is calculated using:
A = L * W
Substitute 7 for L, and M for W
A = 7M
Hence, the equation that could be used to determine the unknown side length, M of the logo is A = 7M
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brainly.com/question/24487155