Which expression models the area of the given figures? 3. Area = 4. Area = 3x 5 4 a 1 А. (3х + 5) (х +1) В. 1+x+3x+ 5 С. 4х + 6 А. 4(xta) В. 4ха С. х+а+4 D. 4x + a D. 15x •x

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A: Given:

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