-1 because x is 4 so you just plug it in and 4-8 is -4 and -4/4 is -1.
I think it’s 3 I’m not sure
On the problem you have given, the y ingercept shows the amount of time in hours it takes for the number of customers, so it would cross at 5 and represent 0 customers
The first step would be to add 7 to both sides.
3n-7=30
add 7
3n=37
divide by 3
n=12.33
