Miley has d decks of playing cards. write an equation for a function that shows how many c cards miley has all together if each deck has 52 cards.

Answer is C= 52d
To solve problems like this, you would just need to think about what the question is asking you one step at a time
List what you know
- There are 52  cards in each deck
- We need how many cards in total

So let us think about it from a mathematical standpoint
1 deck= 52 cards         1 x 52= 52
that means
2 deck= 104 cards      2 x 52 = 104
3 deck= 158 cards      3 x 52 = 158
and the list keeps going
That means that 52 multiplied by whatever number d is will get you the total number of cards.
thus C= 52d

10 will be the number of adult tickets and 11 will be the number of children tickets. i hope i could ! good luck : )