Place value of 4 in 4.735

Which situation is an example of an observational study?

Which expression equals 9^3 sqrt 10 a. 5 sqrt 10 + 4 sqrt 10 b. 5^3 sqrt 10 + 4 ^3 sqrt 10 c. 5 sqrt 10 + 4^3 sqrt 10 d. 5^3 sqrt 10 + 4 sqrt 10

Given that (6,9) is on the graph of f(x), find the corresponding point for the function f(x - 2). enter the correct answer.