The half-life of uranium–238 is 4.5 × 10^9 years. The half-life of uranium-234 is 2.5 × 10^5 years. How many times greater is the half-life of uranium-238 than that of uranium-234?

What is the y-coordinate of the solution of the system of equations? [tex]y = 2x + 14 \\ - 4x - y = 4[/tex]y=

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers