The answer is the last option, hope this helps lol
Where a= next number in the sequence:
a=n(-3) + 6
A miler is longer than a kilometer.
Recall that

There are three cases to consider:
(1) When

, we have

and

, so

(2) When

and

, we get

and

, so

(3) When

, we have

and

, so

So
Answer:3/4 miles per hour
Step-by-step explanation:
Simplify the fraction 20/15 to get 3/4 per hour or 0.75 miles per hour