Find the quotient if the sum of 2/5 and 7/15 is divided by the difference between 7/18 and 2/15

You can use a software like Microsoft Excel just like I did to aid you with this problem. All you gotta do is plot the x values (time) against the y values (height). The graph is shown in the attached picture.

a. From the graph, you can see that the trendline is a line. This means that there is a linear relationship between time and height. 

b. You can use Excel to construct the trendline and find its corresponding equation. From the picture, we can see the equation to be y = x + 5. Let's substitute the variables. This equation would now be specified to h = y + 5.