Answer:
4+(-6)+8+(-1)
Step-by-step explanation:
if she starts at 4 points and her first turn she cuts 6 trees then you can add a negative 6 which is the same as subtracting that 6 when she plants 8 add those points then for her last turn add a negative 1 which is the same as subtracting 1 and she should end up with 5 points.
Answer: 
Step-by-step explanation:
Given : The fuel efficiency of car = 7.6 km per kilogram
We also given that
1 mile = 1.609 km
Then, 
1 gallon = 3.785 liters

1 liter of gasoline = 0.729 kg
Then, 

Now, the fuel efficiency of car will be :

Hence, the car’s fuel efficiency in miles per gallon= 4.5
To represent the change in points, you can think of it in two ways:
1. You will go down 25 points for every wrong answer, so -25 + -25 + -25 would represent what is happening. They are all negative, so you keeping moving down in value.
2. You can also think of this as 3 groups of -25.
Both answers are -75. The answer is negative because the change was down in points.
-75 is the integer that represents this situation.
Answer:
$6,100
Step-by-step explanation:
12,500-1600(4)
12,500-6,400=6,100