2 (3a+2) = -8 (Solve using distributive property

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?