9-3÷ 1/3 + 1= plz answer correctly because i can get grounded and I will give brainliest and give 20 points

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )