Answer:

Step-by-step explanation:
As we are dividing by powers, we can just subtract the powers as they have the same base. As 12-4=8 the answer would be

Answer:
x=0.875
Step-by-step explanation:
2×+y=1
y=0.5
4×+2y=-1
4×+2.5=-1
1+2.5=4x
3.5=4x
x=0.875
Answer:
a b c
Step-by-step explanation:
Answer:
When two quantities increase or decrease together they are said to be directly. proportional