How do you find the range of a number?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

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 parks wears 2 camouflage bracelets how many bracelets does he have on