How do i do this. i don’t understand how to move place values

For this case we must indicate the value of the following expression, expressed in scientific notation:

We have that for multiplication properties of powers of the same base, the same base is placed and the exponents are added:

Then, rewriting the expression we have:

step-by-step explanation:

in which figure is point g a centroid

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2