The cost to repair linda's car is $500, including parts and labor. the cost of parts is $140. if the cost of labor is $40 per hour, how many hours of labor did the repairs take? a. 20 b. 1 c. 8 d. 9

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?