Joe is buying necklaces for his party. for every five balloons he pays eight dollars. how much does each necklace cost?

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?