Evaluate the function f(x) = -4x + 9 when x = 3. Round to the nearest tenth when needed.

Can some one me with these questions

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2