I have solved most of this but I have been given the oppertu

I have solved most of this but I have been given the oppertunity to get extra credit if it\'s 100% correct so I would greatly appreciate some help to ensure I didn\'t veer away from the correct answers.

$I have solved most of this but I have been given the oppertunity to get extra credit if it\'s 100% correct so I would greatly appreciate some help to ensure I d$