Hi, could I get some help with this micro-macro connection physics problem involving root mean sqaure speed?

The set up is:

What is the rms speed (in m/s) of a helium-3 atom in an ideal gas at a room temperature of 300 kelvin (K) to 4 digits of precision if k_B = 1.38e-23 J/K, and the mass of helium-3 is 3.016 u, where the atomic mass unit u = 1.66e-27 kg?

Thank you.