The simplest way to find this number is to add your two known values (7 and 6) which should be 13. Now you should subtract it from 18. (18-13). That should equal to 5, which is your answer.
Answer: B
Step-by-step explanation:
I got it right on Edge
The distance is 3, because 7 - 4 = 3.
I believe the answer is C, 68.
Angles A and R are supplementary so:
180=x+124
Angle A=56
AFD is an isosceles triangle so angles A and D are both 56. Then you can use these to solve for angle AFD.
180 = x+56+56
x=68
