Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form.
64, 8, 1, ...

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

What is the ratio fraction form of 25: 9