I believe its 45.
Its hard to explain but what I can say is if you subtract the percentage with the total of the skins you would subtract what you had from there and then you would have 45.
The combo is 4592 I think
A. I think the cordinate of the meeting place will be 11,11 and for B I don't even know why that's there..
C. I think it's 11 too. Idk but, when you check ur homework you can ask ur teacher/parent for help.
Answer: b) 8√2
<u>Step-by-step explanation:</u>

Front yard
65+65+45+45=220
Back yard
45+45+35+35=160
220+160=380
380 feet