Algebra closeouts on the current-year model have the dealership offering 3-year leases with only $500.00 due at signing. the lessee must have approved credit and is responsible for $0.15 per mile over 12,000 miles per year. if the total lease cost is $9,050.00, how much is each monthly lease payment?

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?