Answer: See my answers below
Explanation:
Area formula = l * w
1. 3 * 7
2. a * 4 or 4a
3. m * m or m^2
4. (x * 4)+ (4 * 1)
5. (d * 7) + (4 * 7)
6. (y * y) + (y * 3)
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