If you need two gallons, which store should you buy from? first store second store they are the same price there is not enough information

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

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Prove that 16^4-2^13-4^5 is divisible by 11.