The shoe store has twice as many black shoes as it does brown shoes. the total number of shoes is 66. how many brown shoes are there?

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

What is the first step of an indirect proof of a number that is divisible by two

What is the length and width of a 84.5 square foot rug? will mark