Do 5 yd 12 yd 13 yd make a right angle?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Harry is at the depot in dover and has deliveries to make in edinburgh, glasgow and aberdeen. from dover which of the deliveries is the shortest distance?

1. how do you find p(a and b) if a and b are dependent events for two or more actions, such as selecting two candies and drawing p(green, and then pink)?