In Salutation^x, Genders^x

Should we use a salutation when we know the name of the person but not sure about the gender?

If it's ok for you to do this. Can you check my answers and explaine why the ones I got wrong are wrong? Yes I do have to turn this in but I want to make sure they're right first. part 1 1. The governor spoke from the steps of the____about the___of the strike. a. capitol;affects b .capital;...