Find the distance between the points (15,-6) and (10,3). I need to show my work PLEASE HURRY

Use set buikder notation to represent the following set: {, -2, -1, 0}

What point is the projection of q on a) r b) s c) t

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?