You're asking to convert 77 degrees Celsius to Fahrenheit. Here's how to do it:

Formula:

°F = (°C × 9/5) + 32

Calculation:

°F = (77°C × 9/5) + 32

°F = (138.6) + 32

°F = 170.6

Answer: 77 degrees Celsius is equal to 170.6 degrees Fahrenheit.