Find the length of midsegment QR.

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17