On average, how long did it take for runners in Group 2 to run the last 20 meters

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

If f(x)=1/x and g(x)=x+4 which of the following is the graph

15 ! will give ! 1. simplify 100 squared. a 20 b 10 (pretty sure it's 10) c 50 d 25 2. simplify 27/12 squared a 13/6 b 2/3 c 3/2 (pretty sure it's 3/2) d 3 3. find the square root of 0.49 a 7 b 0.07 c 0.007 d 0.7 (almost completely sure its 0.7) 4. simplify fully. 2 5 squared + 3 5 squared - 5 squared a 5 5 squared (pretty sure its this one) b 4 5 squared c 5 15 squared d 4 15 squared 5. simplify 2 squared * 800 squared a 20 b 40 c 80 d 400