Write 32.5 billion in scientific notation.

32.5 billion can be written in scientific notation as 3.25 × 10^10. To break it down, since 1 billion is 10^9, you just multiply 32.5 by that to effectively shift the decimal point ten places to the right, giving you that neat, compact form! Getting comfortable with scientific notation can be super helpful, especially in fields like science and engineering. It simplifies handling enormous numbers, making calculations a breeze! So, the next time you're dealing with something as colossal as the universe's age or the distance to stars, you'll have the perfect tool at your disposal.