The fruit basket at a summer camp contained 4 oranges and 5 apples. carlos chose
piece of fruit at random from the basket and gave the fruit to his friend duncan. then carlos reached in again and chose another piece of fruit at random for himself. what is the probability that duncan received an orange and that carlos then received an apple? express your answer in simplest form.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.