Can someone show me the steps and process to this problem im about to show x=3 and y=8 what is y2-3x

The 4th one.

Step-by-step explanation:

As you know, the length in cm for each is 4, 6, 4, 3, 5, 6, 5, 4, 3, and 6. So, you must now count how many times 4 is listed, which is 3. Now, you will look at each chart for 3 x's above the number 4. You have now eliminated the middle two. Next, count how many 3's there are, which is 2. Both have those, so eliminating other choices is a no-go. Now, look at how many 5's you have, which is 2. Look at your charts... again, no choice ca be marked-off. Finally, look at how many 6's there are, which is 3. So, look at your last options and find which one has 3 total x's above the 6. And there you go, D.

Hope this helps! :)