Answer:
A. 4.8E22
steps
multiply 8 x 6 which 48
add all the zeroes....
there are 16 zeroes after 6
there are 5 zeroes after 8
that makes 21
that gives you
48 x 10^21
then put a decimal point after the 4
which add 1 more to the exponent 21
48 x 10^21 -> 4.8 x 10^22
