Answer:
a negative and a positive
Step-by-step explanation:
always equal a negative
and she put x next to 31.7 when x was not meant to be there
Answer:
19 is the area for the problem
Answer:
22
Step-by-step explanation:

Answer:
Here they are Hope this helps :3
Step-by-step explanation:
1. 52
2. 4
7. (im not sure i think its H or A)
7.(not sure think its F)
8.x=6
Answer:
The required equation is (1) and the number of boys is 211.
Step-by-step explanation:
Let the number of boys be x.
It is given that there are 100 more girls than boys. It means the number of girls is x+100.
The total number of students is 522.
Number of boys + Number of girls = 522
... (1)
Combine like terms.

Subtract 100 from both the sides.


Divide both sides by 2.

Therefore the required equation is (1) and the number of boys is 211.