An employee working in a machine shop is exposed to three different sources which emit noises at 81 db, 91 db, and 88 db. what is the combined noise level exposure?

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?

How many grams the dog will eat in 3 days?

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52