Answer:
C(x) = 25 + 2x
Step-by-step explanation:
He already has 25 cards.
He is collecting 2 cards per month. In x months, he will have collected:
2 * x = 2x cards
That means that the number of cards he will have after x months will be the sum of the cards he already has and the cards he collects per month:
C(x) = 25 + 2x
3(n-7)=-30
3n-21= -30
3n = -9
n= -3
A b and 3 is the correct answer
Answer:
I believe its the second one.
Step-by-step explanation: