D. the total quantity of shoppers are needed for statistical information
Answer:27 < AB < 81
Step-by-step explanation:
Answer:
f (-3) = 45
Step-by-step explanation:
f (x) =

f (-3) =

=》

=》

1/3 x (3^-2 x 3^5)
1/3 x (1/3^2 x 243)
1/3 x (1/9 x 243)
1/3 x 27
9