An after school center has 9 students for every 4 teachers. Which fractions are equivalent to the ratio of students to teachers? Choose all that apply.

The cost c, in dollars, for bananas depends on the weight w,in pounds, of the bananas. this situation is represented by the function rule c=0.5w (graph each function rule.tell whether the graph is continuous or discrete)

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

Which are the possible side lengths of a triangle?