During one year, about 163 million adults over 18 years old in the United States spent a total of about 93 billion hours
online at home.
a. Write each number in scientific notation.
b. On average, how many hours per day did each adult spend online at home? Show your work using scientific notation.

1.63 x 10^8 and 9.3 x 10^10

9.3 x 10^10 divided by 1.63 x 10^8 = 12.09 x 10^2 for the amount of hours per adult.

Step-by-step explanation:

figure c

step-by-step explanation:

hope this .

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.