For the circle one I got 100-25pi and then simplified it to 4-pi (I did write 100-25pi in the answer box with it: how many marks will I get)
Also on the one with the fractions I did it wrote but didn't write it as a mixed number: how many marks will I get?
Also, on the last question I wrote1/4-root6/12 (how many marks will I get?
Thanks for making this by the way