Answer:
66.67% or 2/3
Step-by-step explanation:
He put 1/3 of his sports books on the shelf. Ignore the 1/4 and focus on how much space the sports books are not taking up which would be 1-1/3=2/3 or 66.67%.
☁️ Answer ☁️
n = 3
Hope it helps.
Have a nice day noona/hyung  ̄▽ ̄
Mathematical model is a description of a system using mathematical concepts and language. The process of developing a mathematical model is termed mathematical modeling.