Me with math plz! giving brainlist answer the ones you know not all

1) x^5 y^7 z ^5/2

2) idk

3) y-6 the check mark thingy and under it is 2 * y not under check mark thingy - 14

4) 1/x

5) 6 check mark thingy and where the V starts on that top is a 4 and then under the check mark thingy is a 2 if you wanted it in decimal form its 7.13524269...

Where’s the picture or data?