Idk how to explain my work :/ help ?

The total arc length around a circle is 360 degrees. So, these 3 arc with expressions given will all add up to 360.

(-2 + 8x) + (10x + 10) + (10x - 12) = 360

28x - 4 = 360

28x = 364

x = 13

Now that we know the value of x, we can plug that value into the expression for arc LM and solve for the measure.

LM = 10x - 12

LM = 10(13) - 12

LM = 118 degrees

Hope this helps! :)

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

idk

step-by-step explanation:

i don't know