Scientific notation can be scary but it really is simple
the exponent after the 10 is how many places you move the decimal. If it is positive you move it right, if it negative you move it left
2 x 10^2 means you move the decimal place right twice to make 200
4 x 10^-3 means you move the decimal place left three times to make .004
The question is asking you to multiply 900000 and .0000006
3x2 is six. If you do that across, you would get 6/6 for both. 6/6 - 6/6 is how much?
A-d i gave you the whole decimal round as needed
I don’t have any paper near me but on ur graph paper start at the point (1,2) and go up 1 and to the right 3 and make a point. Then go back to point (1.2) and go down 1 and to the left 3. Make a point there and draw a line and u have a graph! Hopefully this helps!