Answer:
root3
Step-by-step explanation:
multiply the numerator and denominator by the root of 3
3root2×root3/root3×root3
3root6/3
note root3×root3=3
the 3 up will divide the 3 down
and that lives u with the answer root2
sorry currently won't have a way of writing the roots thats y am using words
$10 I’m guessing I don’t really know
Im not sure for B but A makes a square. If you have graph paper you can plot them and it should make a normal square. Hope that helps.