The statistical question would be B.
A) 51, assuming this is a *right* triangle:
38^2+34^2 = 50.99^2, rounding 51!!
It is obviously C. most obviously
I am assuming this is a triangle.....P = a + b + c
P = 2a - 3 + 2a + 3a + 1....combine like terms
P = 7a - 2 <==