Answer:
y=1+1x
Step-by-step explanation:
$1 is the original price, then its $1 for EACH attendee (so 1x)
For example, I go with 4 colleagues. I pay $1 to get in and then $1 for each of my colleagues, plus myself. I would pay $6 because there is 5 of us, and then the entry fee.
432 divide by 3. then multiply by two equals 288.
Answer:

Step-by-step explanation:
To find the inverse of y=4x+12, all you need to is swap x an y and then remake y the subject.
y=4x+12
Swap x and y:
x=4y+12
Solve for y:
Subtracting 12 on both sides:
x-12=4y
Dividing 4 on both sides:

So 
5x-12 would be equivalent to that expression