3. Cause 27/9=3. Hope this helps :)
I think Sam is correct cuz SQ is a bigger rectangle and for OM it is smaller and we only know the width
Answer:

Step-by-step explanation:
5^2x=7^x+1 ⇔ ln5^2x = ln7^x+1 ⇔ 2xln5 = (x+1)ln7 ⇔ (2ln5-ln7)x = ln7
⇔ x = ln7/(2ln5-ln7)