There are 3 Simple Steps to Divide Fractions:
Step 1. Turn the second fraction (the one you want to divide by) upside down
(this is now a reciprocal).
Step 2. Multiply the first fraction by that reciprocal
Step 3. Simplify the fraction (if needed)
The answer is C 50 people because if you multiply the 40 percent by 2 you get 40 people then you can divide the 40 percent and add it to the 80 percent to get 50 ( ik it’s a lot)
Answer: 
Step-by-step explanation:
The total outcomes on a die = {1,2,3,4,5,6}=6
The total outcomes on a coin = {Tails or Heads}=2
The number of possible outcomes =
If you roll one die and flip one coin, then the possible outcomes are:

Here T denotes for Tails and H denotes for heads.
Yes it is in scientific notation