Answer:
D
Step-by-step explanation:
Sinusoid graphs look like regular waves.
It is obvious that only I and III look like waves.
II is known as a stepwise function.
This point 2 3/4 on the number line
4 because 4 x 4 =16 and 4+4=8
Answer:
21120 hours long
Step-by-step explanation:
42240=20 miles
42240/2=21120h