Which referent could you use for 1 m?

1. The height of the kitchen counter above the floor

2. The width of a classroom in your school

3. The width of a computer keyboard

4. The length of a dinner fork

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.