Round 18,649 to hundreds and then subtract with 22,000

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Use the distributive property to factor the expression. 5xz + 10yz

Nani needs to buy 8 cups of fresh pineapple for a fruitcocktail. the table shows the unit prices (per cup) ofpineapple at different stores. if nani only has $4, fromwhich stores could she purchase her pineapple? check all that apply.