Answer:
the answer to this problem 19
2(x+6)-11=6(x/2)+16
This is the equation, when not simplified
4y^2-12y
Step-by-step explanation:
y^2+4y-16y+3y^2
=y^2+3y^2+4y-16y
=4y^2+4y-16y
=4y^2-12y
216 / 18 = 12 feet
