Answer: The first one is y=20x + 40;280
The second one is y=n+6
Explanation:
The first one is y=20x+40 this is because when x is replaced with any number 20 will get multiplied by that number for example.
y=20x+40
If we assume that x is 4:
y=20(4)+40
y=80+40
y=120
our answer is 120.
I hope this helped.