What is public ID? i forget bc i need to know for esports

(a school gaming thing)

Donna and her team of five have invented a new gadget for the science exhibition in their college. which intellectual property right will protect their invention?

In cell b18, enter a formula to calculate the amount budgeted for meals. this amount is based on the daily meal allowance and the total travel days (# of nights+1).

Would a ps4 wired controller work on an xbox one