There are 100 fourth graders at oak ridge elementary. sixty of these students are girls. show what part of the fourth grade are girls as a percent, decimal, and fraction.

Someone . me. compound probability

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

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?