Find the length of side a

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?

Which value would be a solution for x in the inequality 47-4x< 7

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form