If 36 x 23 + 33 x 64 = 2,940, what is the variable: h? h x 23 + 64 x 10

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?

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'