Which expression can be used to find the quotient of 15 and One-third? 15 + one-third 15 minus one-third 15 times one-third 15 divided by one-third

Answer this question only if you know the 30 points and

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?

How are sas and sss used to show that two triangles are congruent?