Answer:
180 mm
Step-by-step explanation:
height : cases
105 : 7
constant of proportionality = 105/7
height of 12 cases = 12 x 105/7 = 180 mm
Another name for a square corner is Vertex
Y=18
x=6
following since they vary directly it would be in
y=mx form
18=m(6)
6*3=18
your answer is y=3x
2(x-2)+(x+3)
=(2x-4)+(x+3)
=2x-4+x+3
=3x-1
