If there are two numbers on one side, do i have to add them together?

YES

Step-by-step explanation:

For example, in the figure displayed in the attachment, the length of

Therefore, .

The lengths of segments MS and SY sums up to give you the length of YM.

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.