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.
2a + 4 - 7a + a
2a -7a +a +4
-5a + a +4
-4a + 4
-4a + 4 is your answer
hope this helps
Answer:
its type hard to see ngl
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let's write miles over hours
80 / 2 = 200/ x
cross multiply
80x = 400
divide both sides by 80
x = 5
It will take 5 hours to cover 200 miles
Hope this helps :)