What is 687.2194 rounded to 1 and 2 significant figures
PLSS HELP​

Select the quadratic that has root x = 8 and x = -5

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

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.