Yes it is a function!, all the first numbers are none repeating, for example it says -5,4,6 since they are not the same this is a function
Answer: 
Step-by-step explanation:
Given : Distance traveled by Lily= 354 miles
Time= 6 hours
Then,

Hence, the required speed of Lily = 
Answer:
8-4(-x+5)
8 +4x -20
4x -12
Step-by-step explanation:
8-4(-x+5)
8 +4x -20
4x -12
Answer:
3168 feet
Step-by-step explanation:
Do not know how to word explanation.