Are these equations linear or non-linear?

Linear

Step-by-step explanation:

Find the degree of the equation to determine if linear.

84%

Step-by-step explanation:

You need to find the area of both circles, so-

= 78.54

= 12.57

Then, you need to divide the answers to find the %, so 12.57/78.54

this gives you 16%, but that is the chance of it landing in the shaded region. The chance of it landing in the non shaded region would then be 84%.