Question

Global online music sales have exploded. It was expected that music lovers would spend 2 billion for online music in 2007, in scientific notation this number is?
Pls help ive been struggling on this for a while

Answer 1

Answer:

$2*10^{9}$

Step-by-step explanation:

we know that

One billion is equal to  one thousand million

1 billion is equal to 1,000,000,000

so

Multiply by 2

2 billion is equal to  2,000,000,000

Remember that

In scientific notation, a number is rewritten as a simple decimal multiplied by 10  raised to some power, n

n is simply the number of zeroes in the  full written-out form of the number  

In this problem n=9  

so

$2,000,000,000=2*10^{9}$