Step-by-step explanation:
The reason is because it is not just 6 it is - 6 so when there are two negative numbers they don't subtract they add if it was 6n then it was to be subtracted
21m - 11n + 2m
23m - 11n
Answer:

Step-by-step explanation:
Let h be the height of the tree.
Given:
Height of the tree = 379 feet
We need to find the height of the tree in yards.
Solution:
From the given statement, Hyperion is the tallest tree in the park, with a height of approximately 379 feet,
We need to convert the height of the tree from feet to yard. So, We divide the height of the tree by three for yard.
For one feet

For 379 feet


Therefore , height of the tree 
12.2 I believe but I'm not sure
Answer:
The system of equations are
and 
Step-by-step explanation:
Given : There are a total of 64 students in a drama club and a yearbook club. The drama club has 10 more students than the yearbook club.
To find : Write a system of linear equations that represents the situation.
Solution :
Let x represent the number of students in the drama club
and y represent the number of students in the yearbook club.
There are a total of 64 students in a drama club and a yearbook club.
i.e.
....(1)
The drama club has 10 more students than the yearbook club.
i.e.
....(2)
Substitute the value of (2) in (1),




Substitute in (2),


Therefore, the system of equations are
and 
All the angels ect would have to be equal to all of them dose it tell u the angels