Question

0.78 x 10 by the power of 3

Answer 1

well 10 to the third power is 10*10*10= 1000 so 0.78* 1000= 780

Answer 2

$0.78* 10^{3}$
First lets do the $10^{3}$
That equals 1000
Then just multiply that by 0.78
1000*0.78= 780