A I think is correct, but you may want to get a second opinion.
Because you added 14 cards to your collection, we'll have to subtract that:
40 - 14 = 26
Knowing that 26 cards is half of your old card deck, we know that your old card deck is:
26*2 = 52
You have option b. 52 cards before.
52.4/2= 26.2
26.2-3= 23.2
So the original number = 23.2
Answer:
10%
Step-by-step explanation:
10% of 36 is 3.6 If you add 3.6 to 36 you get 39.6 hope you did good