Four artists open a business selling paintings and agree to split the profits equally. they spent $150 on supplies. if their total income is $870, how much is each person's share of the profit?

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?

Name the most appropriate metric unit for each measurement

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?