Answer:
0ption B is correct
ie:f(x) = x
i belive its 1
Step-by-step explanation:
Because its SUM so its adding and the sum is 22 and 20+2=22.
2,000,000+300,000+80,000+1,000+500+70+9 is 2,381,579 in expanded form.
True
Each x input has 1 y output
