5. a store is designing the space for rows of
nested shopping carts. each row has a
starting cart that is 4 feet long, followed by
the nested carts (so o nested carts means
there's just the starting cart). the store
measured a row of 13 nested carts to be
23.5 feet long, and a row of 18 nested
carts to be 31 feet long.
a. create a graph of the situation.

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?