Answer:
The cost of n notebooks is 4n dollars.
Step-by-step explanation:
C(n) = 4n
4n=c
your trying to figure out how how much he paid and how much money it cost total so you have to multiply the cost of one by the number of notebooks you have n and by doing that you would be able to get your total cost c
Saw this question before. The answer is Anita' square.
Square has only four sides while the others more than four so make sense for the square to have longer sides
3
7x-2y=3
7(1)-2(2)=3
7-4=3
3=3
