The lighthouse on the beach casts a shadow that is 48 feet long. your friend is 5.5 feet tall and casts a shadow that is 2.2 feet long. what is the height of the lighthouse?

The height of the lighthouse= 120 feet.

Step-by-step explanation:

Let the shadow cast by lighthouse on the beach and the friend occur on the same time, then the triangle formed by lighthouse and its shadow and the triangle formed by friend and its shadow must be similar.

We know that the sides of two similar triangles are proportional.

Therefore,

the answer is b

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value