Answer:
can you be more specific? give a problem
Step-by-step explanation:
F(x) = x(x -1)
f(3) = 3*2 = 6
f(6) = 6*5 = 30
so f(f(3)) = 30 . . . . . selection A
Unit rate is 3. equation is 21÷7=3
Using PEMDAS, 12-5 is 7. 7^2 is 49. 49+22=71. 71-3=68.
I think you would put 570 in the blank since 19 x 3 = 57
