In an examination 60 candidates passed science or maths if 15 pass both subjects and 9 more passed science than maths find number of candidates that passed each subject

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points