A box contains 4 yellow markers, 3 blue markers, 6 black markers and 2 red markers. Suppose a marker is chosen randomly, and then returned to the box. Determine the probability of selecting a yellow marker, then a red marker. (no links or files)

8/225

Step-by-step explanation:

(4/15).(2/15) as given we return one then select another

i belive those are the ones that are under 90 degreese.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!