???pls help i'm not that smart thank you

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

What is the sum of these mixed numbers 4 2/3+ 3 1/9

The school board administered a math test to all students in grade 66 at high achievers charter school and determined that 15\%15% of them were below grade level in math. based on this data, which of the following conclusions are valid? choose 1 choose 1