SOMEONE PLEASE I NEED A FULL ANSWER FOR ALL THESES STEPS WILL MARK AS BRAINLEAST AND GET A GOOD REWARD OF 20 POINTS. Please answer all steps for full credit.

SOMEONE PLEASE I NEED A FULL ANSWER FOR ALL THESES STEPS WILL MARK AS BRAINLEAST AND GET A GOOD REWARD OF 20 POINTS Please answer all steps for full credit class=