N=10 ...................................
a. if the return trip is the same then the bird traveled 40miles
b. the time of the trip is x hours + 6/x-4
Hope this helps!
Answer:
proportion used: 7/20
7emails were from the same person
Step-by-step explanation:
35/100= 7/20
7/20 of 20
20/20=1
1x7= 7
