Write 82.5% as a fraction in simplest form

Pls i’m too dumb to know what i’m doing right now

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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. how many hours after the truck's departure will the two meet?