Answer: d
explanation: baseball cards already take up half so it cant be a or c because those are more than half and if you add all of the numbers up you would get 40. 15 out if 40 is 3/8 and baseball cards take up 4/8 and football cards take up 1/8 so your answer would be d.
When you round; you round down if the number in the selected column is below 5 and you round up if the number is 5 and above.
Thus; if you apply this to your question:
784,072 then round up and you get 790,000
I am not sure about this. I am sure that 3 has atleast 1.
Answer:
x = 15 inches
Step-by-step explanation:

You set up the equation. Then you do 20 minus 12 which gives you 8. You’re left over with x/3 equals 8. 8 multiplied by 3 gives 24, so x equals 24