A girl, 5 feet tall, notices that when she is 2 feet from her boyfriend the line of sight to the top of a building just passes over the top of his head. Her boyfriend is 6 feet tall and is standing 100 feet from the building. How tall is the building?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?