An ornithologist watches for birds in a small area of rainforest. She sees a total of x different birds. Of these, 2/7 are birds of paradise; 3/5 of the birds of paradise are male. If the ornithologist sees 24 female birds of paradise, what is x?

a. 56
b. 84
c. 140
d. 210

Why should children should be allowed to vote at elections? explain

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

These three organisms are interdependent on each other for their survival. what will happen if foxes are eliminated from the region? a. there will be more rabbits and less grass in the region. b. there will be more grass and fewer rabbits in the region. c. there will be fewer rabbits and less grass in the region. d. there will be more rabbits and more grass in the region.