What is 20/4 - 8 please help

Matteo makes raspberry punch. the table shows how many parts ginger ale and raspberry juice to use for a batch. raspberry punch parts ginger ale 2 parts raspberry juice 3 matteo decides to add one part of raspberry juice. what is the new ratio of ginger ale to raspberry juice?

If jaime wants to find 60% of 320, which table should he use?

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year