The sum of Arlene and Meaghan’s age is 75. Arlene is 21 less than two times Meaghan’s age. Find their ages.

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.

Can (3,5 and square root 34) be sides on a right triangle?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall