What is probability of hitting the black circle inside target closer to 0 or 1 need show work and explain

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

If u good at math hit me up on insta or sum @basic_jaiden or @ and

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)