I think it base x height I might be wrong but you should try it
Answer: ![y=-\frac{5}{3}x-1](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B5%7D%7B3%7Dx-1)
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals, so the slope of the line we want to find is -5/3.
Since the y-intercept is (0,-1), the equation is ![y=-\frac{5}{3}x-1](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B5%7D%7B3%7Dx-1)
The part is 21 and the whole is 60
hope this helps. God bless
there's not enough to answer this question