im sorry I want to help but it wouldnt load :'(
You can factor 12 from both terms to get

Answer:
y=-(4x/3) -1
Step-by-step explanation:
Slope=m= -4/3
y intercept = c = -1
now using equation;
y= mx+c
y= (-4/3)x+(-1)
y=-(4x/3) -1
Answer:
$288 dollars
Step-by-step explanation:
12 x 24 = 288