There are c compact discs on each shelf. Write a variable expression that represents the number of compact discs on 25 shelves.

25 + c
25 ÷ c
25c
25 – c

Question

There are c compact discs on each shelf. Write a variable expression that represents the number of compact discs on 25 shelves. 

25 + c
25 ÷ c
25c
25 – c

nincompoop · Answer

what operation do you think is going to appropriately answer the question?

anonymous · Answer

i think its 25 x c

nincompoop · Answer

that is correct! therefore we say that the proper answer is 25c since 25 multiplied by c is 25c

nincompoop · Answer

c replaces the number of discs in each shelves. if we had 5 discs in each shelves then c = 5; if we had 10 in each shelves, then c=10.  since we don't know how many discs in each shelves, we are going to maintain c as unknown, meaning any number.