Here's how to convert Celsius to Fahrenheit:

* Formula: F = (C * 9/5) + 32

* Where:

* F = Fahrenheit

* C = Celsius

Let's calculate for 75°C:

* F = (75 * 9/5) + 32

* F = 135 + 32

* F = 167°F

Now for 80°C:

* F = (80 * 9/5) + 32

* F = 144 + 32

* F = 176°F

Therefore, 75 - 80 degrees Celsius is equal to 167 - 176 degrees Fahrenheit.