Which situation can be modeled by the inequality 5 + 10 ≥ 45?

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?

What is sin 7x/4 ? i need on this urgent trig

What is the value of x in the equation 2(x-4) = 4(2x + 1)?