Line AC intersects line EB at point F. Ray FD extends from point F. Determine the measures of ∠EFD and ∠CFD.

see below

Step-by-step explanation:  5 25  7 26

∠AFE is 85°  so ∠EFC will equal 180° - 85°  = 95°

remember if a right angle is 90° and two right angles is 180° which is just the angle of a line

now we need to solve for x in the following equation

6x - 20 + 2x + 19 = 95

       8x - 1    = 95

   8x - 1 + 1  =  95 +1

           8x  =  96

      8x / 8  = 96 / 8

             x  =  96/8

             x  =  12

now use  x = 12 to solve for ∠EFD and ∠CFD

∠EFD  =  6x - 20  

∠EFD  =  6(12) - 20

∠EFD =  52°

∠CFD  =   2x + 19  

∠CFD =   2(12) + 19

∠CFD =    43°

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.