Find the slope of the line that passes through -2,5 and -1,1

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these