Nadia walked to a grocery store and, after browsing for 4 minutes, decided to buy a liter of milk for $1.12. nadia handed the salesperson $2.13 for her purchase. how much change did nadia receive?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)