Answer:
Part 1)

Part 2)

Part 3)

Part 4)

Explanation:
we know that
The formula to convert degrees Celsius to degrees Fahrenheit is equal to

The formula to convert degrees Fahrenheit to degrees Celsius is equal to

Part 1) we have
10 degrees Celsius
Convert to degrees Fahrenheit


Part 2) we have
87 degrees Fahrenheit
Convert to degrees Celsius


Part 3) we have
-5 degrees Celsius
Convert to degrees Fahrenheit


Part 4) we have
10 degrees Fahrenheit
Convert to degrees Celsius

