Please answer soon! Abby, Bart, Cindy and Damon weigh themselves in pairs. Together Abby and Bart weigh 160 pounds, Bart and Cindy weigh 180 pounds, and Cindy and Damon weigh 200 pounds. How many pounds do Abby and Damon weigh together?

180 pounds

Step-by-step explanation:

As you see Abby and Bart are both 160 divide it by 2 and you get 80. Then Cidny and Damon are 200 pounds divide that by 2 you get 100. Add 100 and 80 you get 180 pounds. Hope this Helps

B. 1 real zero

Step-by-step explanation:

On the graph, we can see that the function intersects the x-axis at one point.  This means there is 1 real zero.