Write the fraction as an equivalent fraction with the given denominator: 3/5 = ? /25 ?

Which of the following shows the length of the third side, in inches, of the triangle below

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

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?