Please help me i dont get it

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

  the mississippians were considered to be  horticulturalists, which means they were