Select the postulate that is illustrated for the real numbers.
6 · 12 = 12 · 6
the commutative postulate for multiplication
multiplication by one
the addition inverse postulate
commutative postulate for addition
the distributive postulate
the addition of zero postulate
the multiplication inverse

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

What is the perimeter of an equilateral triangle if each side is (x+3)?