Answer:4.55*10^8 or 4.55 times 10 to the power of eight.
Step-by-step explanation: First put a decimal at the end of the number. 455000000. Then move the decimal point 8 spaces to the right. 4.55000000 this means the power of 10 will be a positive 8.
number part=4.55000000 (which can be written as 4.55) and exponent part =8 The solution is 4.55*10^8