James read 4 pages in a book in 6 minutes. how long would it take him to read 6 pages

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

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?