Which of the following statements regarding the expansion of (x + y)n are correct?

For any term x^ay^b in the expansion, a + b = n

And

The coefficients of x^n and y^n both equal 1

Step-by-step explanation:

A p e x

correct answers are:

for any term x^a y^b in the expression, a+b=n

the coefficients of x^a y^b and x^b y^a are equal

idk but i found this "the graph of y = f(x-2) is the graph of y = f(x) translated two units rightward.  

so, since the point (9,2) lies on the graph of y = f(x), the point (11,2) lies on the graph of y = f(x-2)."

step-by-step explanation:

link is

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180