To convert temperatures from degrees celsius to degrees fahrenheit , you can use f(x) =9/5x +32 where x is the temperature in degrees celsius .

When given a temperature in Celsius, substitute the value for x in the equation F(x) = 9/5x + 32. See example below.

Step-by-step explanation:

The formula F(x) = 9/5x+32 can be used to convert Celsius to Fahrenheit. Substitute a value in Celsius into the formula and then simplify.

Example: If the temperature is 9 degrees Celsius.

F(x) = 9/5 (9) + 32

      = 81/5     + 32

      = 16.2 + 32

      = 48.2 degrees Fahrenheit

it would open into a square depending on the type of envelope i’m not sure about the second part

my guess would be b and d, but i didn’t actually get out the pen and paper. lol