40% is close to 50% which is = to 1/2
So just divide 60 by 2. which would be around 30
this is the best way i could explain, I hope this helps
Well when you reflect over a coordinate it puts the same information on the opposite side, for example:
3,5 reflected now its -3,5
9-5×6-2
4×6-2
24-2
=22
you might want to double check
