Part A Which triangles are similar to AED? Explain or show your reasoning.
Part B
The length of segment EF is 8 units and the length of segment ED is 10 units. Find the length of segment FA. Explain or show your reasoning.

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

d

step-by-step explanation:

i used the pitagoras theoreme