Please do number 10 for me.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

Two consecutive negative integers have a product of 30. what are the integers?