Two-thirds of a number is negative six. find the number. a. -9 b. -8 c. -4

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Find the value of x. give reasons to justify your solutions! h ∈ ig

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?