Answer:
y = 57
Step-by-step explanation:
y α x
y = kx ; k = Constant of proportionality
81 = k* 54
k = 81/54
k = 1.5
Value of y when x = 38
y = kx
y = 1.5 * 38
Hence, y = 57 when x = 38
D. 16 km
Hope this helps!
one is correct.
because it have one solution when you graph it