Hydroxide ion reacts with methyl iodide to give methanol in an irreversible second-order reaction wi — Kinetics Chemistry Question

Hydroxide ion reacts with methyl iodide to give methanol in an irreversible second-order reaction with a rate constant k = 6.5 ´ 10-5 L mol^-1 s^-1.
OH–(aq) + CH₃I(aq) ® CH₃OH(aq) + I–(aq)
Rate = k[OH–][CH₃I]
How long will it take the concentration of CH₃I to decrease from 0.010 M to 0.0020 M in a 1.00 M solution of sodium hydroxide?