Answer:
8 E -28
Explanation:
Use the 2nd button and the comma button to get the "EE" which puts numbers into scientific notation for you. I use parenthesis and this is what my screen looks like right before I hit "enter" to get the answer:
![(4.4 E-10)/(5.5E17)](https://img.qammunity.org/2020/formulas/mathematics/college/1wnk8lfjkcedunqe4xy48hc17vd41fkxn6.png)
Hit enter and you get 8 E -28