Answer:
40
Step-by-step explanation:
If she gains a card that would be a positive 1, if she sells one that would be negative 1, and if she keeps one than that would be 0.
Answer:
Step-by-step explanation:
4x - 5(x + 3) Remove the brackets. Watch the - sign and -5*3
4x - 5x - 15 Combine the xs
-x - 15
The nth term is given by 2ⁿ-1.
The series looks like, 1, 3, 7, 15, 31, 63, 127, ...
