Mary wants to fill in a cylinder vase. at the flower store they told her that the vase should be filled for the flowers to last the longest. her cylinder vase has a radius of 4in and a height of 10in. how much water should mary pour into the vase?

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.

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Ineed with math stuff it involves graphs