5students want ice cream, 7 want a movie, 10 want a custom, and the rest are undecided. if 20% want ice cream how many students are there in the class

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for