Answer:
74.5
Step-by-step explanation:
i did it on my calculator and it says it is 74.5.
-9(c+4)(c-4)
this is the answer to your question
1. 34.5
2. 111
3. 69
4. 34.5
(mind you I took geometry a year ago and hated it but hopefully these are right?)
Answer:
10 hours
Step-by-step explanation:
speed = distance/time
s = d/t
d = st
d = 75 km/h * 8 h = 600 km
t = d/s
t = 600 km/(60 km/h) = 10 h
Answer: 10 hours