Answer:
[tex]\bf 32*10^7[/tex]
Step-by-step explanation:
Scientific notation was designed to write numbers which have too many zeroes either to the left or to the right.
For example
[tex]\bf 0.00000021 = 2.1*10^{-7}[/tex]
The negative sign of the exponent means that you have to move the decimal point 7 places to the left and replace the space with a “0” to get the original number.
[tex]\bf 42,000,000,000 = 42*10^{9}[/tex]
The positive sign of the exponent means that you have to move the decimal point 9 places to the right and replace the space with a “0” to get the original number.
In this case, our number is 320 million:
320,000,000
and we can see this is equals to
[tex]\bf 32*10^7[/tex]
