Answer:
255
Step-by-step explanation:
254.95
.95 is closest to 255.
254.95...255.
Answer:
B.
f(x) and g(x) are closed under subtraction because when subtracted, the result will be a polynomial.
Step-by-step explanation:

Assume m>=n WOLOG


Are also a polynomial in general, but maybe in a different degree
Closure under subtraction means, for all polynomials, under the operation of subtraction, it also belongs to polynomials
The answer to your problem is 360
0.05 kilogramos.................