which equations can be used to graph the line that passes through 6,15 and is perpendicular to the graph of 3x-6y+15

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

What is the measure of the smallest angle in the diagram? 15 29 32 45

What percent of the circle below is shaded?