a 30-foot ladder is placed against a vertical wall so that the base of the ladder is 10 feet from the base of the wall. how far up the wall does the ladder reach?

The triangles are similar. what is the value of x? show your work.

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?