One of ms. ryland’s favorite foods is microwave popcorn. she loves microwave popcorn so much that she can't stand to waste the un-popped kernels in the bottom of the bag. one time when ms. ryland went to the grocery store she bought all the types of microwave popcorn that the store had. with these types of popcorn she conducted an experiment. read the question that ms. ryland was trying to answer with her experiment and then write a possible hypothesis for this experiment. scientific question: does the amount of butter on the popcorn kernels affect the number of kernels that pop?

No because only whats inside the kernel affects it and if they  do not something could be slightly ruptured within the kernal

Plug the points into the distance formula.

d= (sqrt) (x2-x1)^2+(y2-y1)^2

Plug the first set of points in. (-2,1) (6,1)

d= (sqrt) (6-(-2))^2+(1-1)^2
d= (sqrt) (6+2)^2+(0)^2
d= (sqrt) 8^2+0
d= (sqrt) 64
d= 8

Now, find the distance for the other two points. (6,1) (6,-3)
Q to R.
d= (sqrt) (x2-x1)^2+(y2-y1)^2
d= (sqrt) (6-6)^2 +(-3-1)^2
d= (sqrt) 0^2+-4^2
d= (sqrt) 16
d= 4

Now, finally, find the distance between R and S. (6,-3) and (9,-3)

d= (sqrt) (x2-x1)^2 + (y2-y1)^2
d= (sqrt) (9-6)^2+ (-3-(-3)^2
d= (sqrt) 3^2+ 0^2
d= (sqrt) 9
d= 3

Now, add all those distances together.

8+4+3= 15

"B" is the correct answer. 15 units.

I hope this helps!
~kaikers