Answer:

Step-by-step explanation:
Ok, so we start off with 
Then, we subtract 2 from both sides so that becomes: 
After that, we simplify to get: 
Finally, the solution becomes: 
Question 18
The answer is 4 days.
Because,
Kevin =3×n
Anita =4+ (2×n)
Equating the two equations.
3n=4+2n
3n-2n=4
n=4
Question 19
When the solution is (4,1), it means the value of y=1 and x=4.
The answer is;
y=x-3
y=-3x+13. Since when the values of x and y are substituted they satisfy the system.
Question 20
The system has no solution.
This is because the line are parallel and they do not intersect to give a solution.
Answer: The estimate is closest to the distance d is 4.2 miles
Step-by-step explanation:
In the given image, we can see that there is a right triangle, in which d is the side opposite to the right angle (largest angle in the triangle) which means its the longest side of the triangle.
[Since side opposite to the larger angle is larger]
Therefore, by Pythagoras Theorem we have

The estimate is closest to the distance d is 4.2 miles.
An equation that means 8 more than x is 14 would be x + 8 = 14. I hope this helps!
That no matter what if you feel good about yourself you do better at what your doing. Hope I helped!