Answer:
15
Step-by-step explanation:
A group of numbers or objects is literally just called a group.
Answer:
The ordered pairs are (5,-12), (-1,-1).
Step-by-step explanation:
Given : Inequality 
To find : Which ordered pairs are solutions to the inequality ?
Solution :
We put the given options the point which satisfied the equation is the solution.
Inequality 
1) (5,-12)



It is true.
2) (-1,-1)



It is true.
3) (-3,0)



It is false.
4) (4,-12)



It is false.
Therefore, The ordered pairs are (5,-12), (-1,-1).
Answer:
I don't know if it's correct
but I tried
Step-by-step explanation:
let the angle be x
20+4x+x=180
20+5x=180
5x=160
x=32