Answer:
9.8
Step-by-step explanation:
![\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ 50}}\quad ,&{{ 14.01}})\quad % (c,d) &({{ 79}}\quad ,&{{ 17.78}}) \end{array} \\\quad \\\\ % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}} \\ \quad \\\\ % point-slope intercept y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad \textit{plug in the values and solve for "y"}\\ \qquad \uparrow\\ \textit{point-slope form}](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7Blllll%7D%0A%26x_1%26y_1%26x_2%26y_2%5C%5C%0A%25%20%20%20%28a%2Cb%29%0A%26%28%7B%7B%2050%7D%7D%5Cquad%20%2C%26%7B%7B%2014.01%7D%7D%29%5Cquad%20%0A%25%20%20%20%28c%2Cd%29%0A%26%28%7B%7B%2079%7D%7D%5Cquad%20%2C%26%7B%7B%2017.78%7D%7D%29%0A%5Cend%7Barray%7D%0A%5C%5C%5Cquad%20%5C%5C%5C%5C%0A%25%20slope%20%20%3D%20m%0Aslope%20%3D%20%7B%7B%20m%7D%7D%3D%20%5Ccfrac%7Brise%7D%7Brun%7D%20%5Cimplies%20%0A%5Ccfrac%7B%7B%7B%20y_2%7D%7D-%7B%7B%20y_1%7D%7D%7D%7B%7B%7B%20x_2%7D%7D-%7B%7B%20x_1%7D%7D%7D%0A%0A%5C%5C%20%5Cquad%20%5C%5C%5C%5C%0A%25%20point-slope%20intercept%0Ay-%7B%7B%20y_1%7D%7D%3D%7B%7B%20m%7D%7D%28x-%7B%7B%20x_1%7D%7D%29%5Cqquad%20%5Ctextit%7Bplug%20in%20the%20values%20and%20solve%20for%20%22y%22%7D%5C%5C%0A%5Cqquad%20%5Cuparrow%5C%5C%0A%5Ctextit%7Bpoint-slope%20form%7D)
find the slope, or "rate of change", then plug those values in the
point-slope form and solve for "y", to get the equation of that line,
how much is it for 73 minutes? well, make x = 73, and to get "y" :)
The answer is 60 I hope I helped u
7/50 is in its simplest form because 7 is a prime number and it is not divisible by any number except 7 or 1