I believe the equation y=(2-7)^2 has 1 solution which is y=25
Answer:
429
Step-by-step explanation:
y=3+6×(n-1)
n=72
y=3+6×(72-1) = 429
The surface (call it
) is a triangle with vertices at the points



Parameterize
by

with
and
. Take the normal vector to
to be

Then the flux of
across
is



1 (B), because 3+-2=1, and 5+-4=1, which amounts to 1/1, or whole number 1.