Using the histograms, which of the following is a correct comparison? Neither runner had a lap time between 35 and 36 seconds.
O Alex's lap times show less variability than Stefano's lap times.
The median lap time for both runners is in the 38-39 interval.
Both runners' highest number of lap times in the 37-38 interval.

x=9, y=2

Step-by-step explanation:

there are multiple ways to solve. I prefer lining both equations up so

18x + 21y =204

6x + 14y = 82

You can multiply 6x +14y =82 by -3 to get -18x + -42y = -246

then add both equations together to get y by itself. so you get

-21y=-42

y = 2

then substitute y back in to either equation and you'll get x=9