Use the array to write a multiplication equation and a division equation.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?

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?