how do you write 99 in scientific notation? $square \\times 10^{square}$

$how do you write 99 in scientific notation? $square \\times 10^{square}$$

how do you write 99 in scientific notation? $square \times 10^{square}$

To get a coefficient between 1 and 10, rewrite 99 as $9.9 \times 10$.

The number 99 is 2 digits long, so the exponent is $2-1=1$.

$9.9 \times 10^1$