B. Evaluate the following expression when n =3, and m-4. (Use the back space for your solution) 1. 3n 6.7 +4n E 7.2 +5n-m 8. 8n + 2m 9. (4n+ 5m) + 4 10. n³ (6n-3m) 5. 2nm 2. n²+ m² 3. n +8 4. 25-n

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