A golf ball is selected at random from a golf bag. If the golf bag contains 5 orange balls, 3 red balls, and 15 green balls, find the probability of the following event. The golf ball is orange or red. The probability that the golf ball is orange or red is nothing. (Type an integer or a decimal rounded to three decimal places as needed.)

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2