For number 30 its 3
10
for 34 its 2
1/3
City C (42 and 66 are the two modes they are the most frequent numbers both appearing 3 times)
Answer:
18
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

here [ a, b ] = [ 1, 5 ]
f(b) = f(5) = 3 × 5² = 75
f(a) = f(1) = 3 × 1² = 3, hence
average rate of change =
=
= 18