Agroup of friends had 78 dollars to buy tickets to a game. after buying the tickets they had 15 dollars left. there are nine friends in a group. how much was each ticket?

For which rational expression is -2 an excluded value of x?

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex