Question

plz ans it !!!!
tomorrow is maths exam!!!!!

Answer 1

If power of 10 is positive n, move the decimal point to right by n steps.

If power of 10 is negative n, move the decimal point to left by n steps.

$1.0001 \times {10}^{9} = 1000100000 \\ \\ 5.8 \times {10}^{7} = 58000000 \\ \\ 4.5 \times {10}^{ - 6} = 0.0000045$

Answer 2

Please Refer The Attachment