I NEED HELP WITH THESE TWO QUESTIONS! 1.9(4x+5y+3z)+7x-4y+4z
2.3(6x{2}y+2xy{2})+2(8xy{2}-5x{2}y)
IT SAYS TO SIMPLIFY AND FIND AN EQUVIALENT EXPRESSION FOR EACH EXPRESSION GIVEN! SHOW ALL WORK!!
I WILL GIVE BRAINLIEST!!!

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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?

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's