ANSWER
1.08p = t
x = m/4
V = 12s^2
Step-by-step explanation
The proportional relationship between the quantity y and the quantity x has a constant of proportionality k and is expressed by the equation y = kx. If the equation can be rewritten in other forms as above, it is proportional.
Equation 1.
120 - x = L.
This cannot be rewritten as y = kx
Equation 2:
1.08p = t
This can be rewritten as y = kx
Equation 3
x = m/4
This can be rewritten as y = kx
Equation 4
V = 12s^2
This can be rewritten as y = kx
Hence, 1.08p = t, x = m/4 and V = 12s^2 equations represent proportional relationships.