Answer:
100 inch
Step-by-step explanation:
1 cm=0.394 inch
254 cm×0.394=100 inch

This result is actually true for any exterior angle. The exterior angle of a triangle is equal to the sum of the two remote angles, and above is a short proof of it.
That's not enough information to calculate your grade from.
-- You've told us the scores you have in things that go together
to make up (35 + 5 + 25) = 65% of your grade.
-- We don't know your scores in the things that make up the other
35% of your grade.

Because there's one 3 & four 7's .

Because there are two 2's & four 9's