What is the simplified form of each expression?

1.7m^2 + 6.5n - 4n + 2.5m^2 - n

2.5m^2 + 7.8n - 3.2n + 5.3m^2 - 5.9n

1. 7m² + 6.5n - 4n + 2.5m² - n
    7m² + 2.5m² + 6.5n - 4n - n
    9.5m² + 2.5n - n
    9.5m² + 1.5n

2. 2.5m² + 7.8n - 3.2n + 5.3m² - 5.9n
    2.5m² + 5.3m² + 7.8n - 3.2n - 5.9n
    7.8m² + 4.6n - 5.9n
    7.8m² - 1.3n

The answer is 76° i believe