Question

which of the following usually makes a subtance dissolve faster in a solvent?

Answer 1

(you didn't state the 'following' you had in mind.
A substance can dissolve faster in solvents if
the temperature of the solvent is raised
if it is stirred with a spatula

Answer 2

increasing surface area, increase temperature, increase concentration of the solvent

Answer 3

increasing concentration up to saturation point only above which it is of no use.increasing temperature increases saturation level.