Can the solutions of a system of inequalities be the points on a line of the shaded area or do they have to be in the shaded area?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

If 3x+8=3x+8 is it one solution or no solution