Answer:
9/20
Step-by-step explanation:
0.45=45/100=9/20
Answer:
x = 8
Step-by-step explanation:
3x - 20 = 4
add 20 to both sides
3x - 20 + 20 = 4 + 20
3x = 24
divide both sides by 3
= 
x = 8
Answer:
wouldn't it be 3,12.....................
Answer:
A = {CBA, CAB, BCA, ACB}
Step-by-step explanation:
2x+y=3
- x+y=5
---------------
x=-2
2(-2)+y=3
y=7
-2+y=5
y=7
(-2,7)