We have to add first the amount of blue and yellow paint to know how much is a batch
[tex]\frac{5}{8}+\frac{5}{8}=\frac{10}{8}=\frac{5}{4}[/tex]having this, we multiply by 29
[tex]29\cdot\frac{5}{4}=\frac{145}{4}[/tex]so she will have 145/4 cups of green