@RHSTUDYZONE Question is absurd : insufficient information.
IF (meant to presume) 49m2 is from 7x7, and IF 25m2 is from 5x5
THEN solution = {(7+2)(8+5)} - (49+25)
> 121-74 =47
@RHSTUDYZONE y = 3 + {2/ ((10x10)-((6x6))}
y = 3 + {2/ (100-36)}
y = 3 + 2/(64)
y = 3 + 8 = 11
Yes, I did it in my head, but sometimes I like to write out the solution