How do you solve these algebra questains?
2m^2-7m-3=0
4b^2+8b+7=4
5√80a^2
-6√150r
2/√3
√6/5√3

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?

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie