The number sentence 4x6=6x4 is an example of what property

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

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.