Which of the tables does not represent a proportional function?
(Hint: ratio of y/x)

What two criteria are needed for triangles to be similar

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

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.