At a fund-raising event, participants got to throw one bowling ball down a lane. for every pin that a participant knocked down, the manager donated $2 to that participant's charity of choice. the line plot shows the number of pins each participant knocked down.
how many participants knocked down 7 pins?
16
14
4
2

I know line plots may be confusing but they aren't!

You just need to count the number of dots that are above the number you want. 

Here, number of pins: you need to go to the "7." Count the number of dots above it -- 2. 

2 participants knocked down 7 pins.

Answer Choice D.

There are total 49 boxes displayed.
So Option D is the correct answer.

Hope I Helped You!!! :-)

Have A Good Day!!!