Mike can pick forty bushels of apples in 14 hours. one day his friend John helped him and it only took 6.16 hours. Find how long it would take John to do it alone

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?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false