The discount was 25% off use 21/28 which is 75 percent of what it was before. 25 percent off.
The equation would be
x - 18 = collection left
X = how much was your collection before you gave your brother 13 cards
Since we don't know how big was your collection before, this would be the equation to solve it.
Answer:
The graph is shifted 7 units and 5 units. Left and Up.
I can’t either Stay strong
