1. Jill has a weekend job at Electro-City selling tablet computers. She earns $10 per hour plus a $25 commission for each computer she sells. Jill earned $425
after working 20 hours one weekend. Which equation could be used to
determine the number of computers she sold that weekend? *

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?