I don't quite understand the question but from what it's given us so far, I can only assume that it is asking which axis the both of them measured?
Vivian measured the X-Axis, as it said she measured it as 6 units long.
Brook only stated that the distance on the line is 4 units, so I can only assume that she measured the Y-Axis.
I don't know if this helped but if so please give brainliest :D
<h2>It has a 40% discount.</h2><h3 /><h3>40 - 24 = 16</h3><h3>16 ÷ 40 = 0.4</h3><h3>0.4 = 40%</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3><h3><em /></h3><h3><em>(That microscope is probably garbage.)</em></h3>
1hr 30 mins= 60mins+30mins=90mins
140$=90mins
In one minute, they make 140/90=14/9
in 9 hours=9*60mins=540mins
540*14/9=840
therefore,they make 840$ in 9 hours
Just transpose the 5 to the right side of 18 so it will look like this, /x/ = 18 - 5
Then get the difference and it would be 13. So to check this out if it is correct, substitute x for the value of 13 and it will look like this.
13 + 5 = 18
I hope my answer helped you.