Which represents the solution set to the inequality

Lets expand both multiplications first.

Simplify down the right side.

Add 38.25 to both sides.

Subtract 11.22x from both sides.

Divide by -21.42 on both sides. Because we're dividing by a negative, we need to change the inequality direction.

This means, out of the options available, (-2.5, ∞) is the correct answer.

Ithink it’s b because it say 3 plastic rings and all the balls