Christian has a collection of 18 shark teeth. He identified them as a 6 tiger shark teeth, 8 sand shark teeth, and the rest as bull shark teeth.
What does the ratio 6:8 represent in this situation?

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Solve the system of equations. y= 2x y= x^2 - 15

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.