Diketahui f: x = 4x - n. jika f(3) = 18, nilai f(-3)= . . .

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

What is best way to getting answer for my exam is

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=