10. The school pool needs to be refilled after it was emptied for winter cleaning. Water flowing through both a small pipe and large pipe can fill the pool in 6 hours. Water flowing through
the small pipe alone can fill the tank in 16 hours. How many hours would it take to fill the
tank using only the large pipe?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

What is the value of x when x + 7 = 21?

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list