Answer:
26 miles
Step-by-step explanation:
use pythagorean theorem to find that from post office to stevie's is 10 miles long( 6^2 + 8^2=100, and the square root of 100 is 10) then add the total distence together and get 8+8+10=26
y=1.61x
if my thinking is not wrong that is the answer.