2) Dan bought 6 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 31 cards left.
How may cards did Dan start with? *

56 Cards

Explanation:

If you only have 31 cards due to the dog eating half of them you would have to have 62 cards but that falls in after you add the 6 cards so the answer is 56 cards. (Also this is in geography not math but whatever)

Math: 31x2+=62

62-6=56

figureit out

explanation:

because scientists need to know the stars so they understand space