Answer:
6.79
Step-by-step explanation:
-Let X denote the total amount of the job.
-The job has to be done in 5 hrs, therefore the portion done every hour is:

Therefore, the rate of Bill and Ted working jointly must equal the rate calculated above:


Hence, Bill working alone should complete the house in 6.79 hrs
Answer:
e. 2
Step-by-step explanation:
If the fruit salad must contain watermelon, he can make the fruit salad in 35 ways.
For the Fist One it’s Pentagonal Pyramid