C and f are correct I think
Yes, quadrilateral means its four angles have equal measures.
The picture is a little blurry
first off, let's convert the mixed fractions to improper, and then do the sum.
![\bf \stackrel{mixed}{9\frac{1}{2}}\implies \cfrac{9\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{19}{2}} \\\\\\ \stackrel{mixed}{6\frac{1}{3}}\implies \cfrac{6\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{19}{3}} \\\\\\ \stackrel{mixed}{8\frac{1}{3}}\implies \cfrac{8\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{25}{3}}\\\\ -------------------------------](https://tex.z-dn.net/?f=%20%5Cbf%20%5Cstackrel%7Bmixed%7D%7B9%5Cfrac%7B1%7D%7B2%7D%7D%5Cimplies%20%5Ccfrac%7B9%5Ccdot%202%2B1%7D%7B2%7D%5Cimplies%20%5Cstackrel%7Bimproper%7D%7B%5Ccfrac%7B19%7D%7B2%7D%7D%20%5C%5C%5C%5C%5C%5C%20%5Cstackrel%7Bmixed%7D%7B6%5Cfrac%7B1%7D%7B3%7D%7D%5Cimplies%20%5Ccfrac%7B6%5Ccdot%203%2B1%7D%7B3%7D%5Cimplies%20%5Cstackrel%7Bimproper%7D%7B%5Ccfrac%7B19%7D%7B3%7D%7D%20%5C%5C%5C%5C%5C%5C%20%5Cstackrel%7Bmixed%7D%7B8%5Cfrac%7B1%7D%7B3%7D%7D%5Cimplies%20%5Ccfrac%7B8%5Ccdot%203%2B1%7D%7B3%7D%5Cimplies%20%5Cstackrel%7Bimproper%7D%7B%5Ccfrac%7B25%7D%7B3%7D%7D%5C%5C%5C%5C%20-------------------------------%20)
![\bf \cfrac{19}{2}+\cfrac{19}{3}+\cfrac{25}{3}\implies \stackrel{\textit{our LCD is clearly 6}}{\cfrac{3(19)+2(19)+2(25)}{6}}\implies \cfrac{57+38+50}{6} \\\\\\ \cfrac{145}{6}\implies 24\frac{1}{6}](https://tex.z-dn.net/?f=%20%5Cbf%20%5Ccfrac%7B19%7D%7B2%7D%2B%5Ccfrac%7B19%7D%7B3%7D%2B%5Ccfrac%7B25%7D%7B3%7D%5Cimplies%20%5Cstackrel%7B%5Ctextit%7Bour%20LCD%20is%20clearly%206%7D%7D%7B%5Ccfrac%7B3%2819%29%2B2%2819%29%2B2%2825%29%7D%7B6%7D%7D%5Cimplies%20%5Ccfrac%7B57%2B38%2B50%7D%7B6%7D%20%5C%5C%5C%5C%5C%5C%20%5Ccfrac%7B145%7D%7B6%7D%5Cimplies%2024%5Cfrac%7B1%7D%7B6%7D%20)
Answer:
B (lmk if you want me to explain)
Step-by-step explanation:
the point slope form is
y-y1=m(x-x1)
y-12=5/6(x--9)
y-12=5/6(x+9)