You and your friends go to the mall. You see the following prices in a store: Hats-$9.99
Earrings- $7.49
Leggings- $17.99
Crop top- $14.99
Sneakers-$29.99

Tom purchases a hat and a pair of sneakers. The cashier tells him that his total is $38.99. Is she correct?

True= yes, False= no

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?