The supermarket has 40 aisles. 20% are empty, without any shoppers. How many empty aisles are there in the supermarket?

Eight empty aisles

Step-by-step explanation:

ten percent of fourty is four, so multiply it by two for twenty percent of court and you get eight!

Hope this helps, smiles and hugs,

SlytherinWolf

linear pair postulates

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.