Answer: LAST OPTION.
Step-by-step explanation:
1. You have the following equation:

2. Then you must solve for x, as following:

Therefore, as you can see above, the answer for the exercise is the last option.
Answer:
usub from where
Step-by-step explanation:
10 different groups can ski.
This is a combination of 5 items taken 3 at a time:
Your answer would be
he needs .4 Liters of milk
Hope this helps :)