Hi, I have a question with 2 parts regarding logs, i have done the first part and believe very close to the second part but cannot quite get there and was wondering if someone could please help me?

a) show log4(3)=log2(root3)

but i am stuck with this part:

b) solve these simultaneous equations

2log2(y)=log4(3)+log2(x) and 3^y=9^x

any help with this would be great

thanks for your time