Its about slopes help pls

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?