PLZ HELP! 20 POINTS ANSWERS THESE FEW QUESTION Subtract. Write your answer in simplest form. 91/2 - 1 6/7

Subtract. Write your answer in simplest form. 6 3/4 - 2 3/20

Find the difference. Write your answer in simplest form.

4 7/9 - 2 2/3

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

Which of the following is the result of expanding