David has c decks of cards. each deck has 52 cards in it. using c, write an expression for the total number of cards david has.

- Answer is in bold. -
To figure the expression (or equation) that shows how many total cards David has, you must keep in mind: To find the total number of cards, you must multiply the number of decks by the number in each deck of cards. 

- So C would be your number of decks and 52 is the number of cards in each deck.
- Remember, you must multiply the two to compute the total number of cards. So your expression (equation) would be:
52c = n or 52c = total amount of cards

C Is your number of decks, N is your total number of cards, and 52 is the number of cards in each deck.

To elaborate, let's take a look at this expression in action: 
Let's say you have 5 decks of cards. Since C is a variable for the amount of decks, it can be replaced with 5.

52(5) = 260
OR
52 * 5 = 260 
So, if you had 5 decks of cards, you would have 260 cards in total!

Hope I could help! If my math is wrong, please let me know!
Have a good one.