WDYE Inv 1 ace help

wdye ace in 1 6 10 22
wdye ace inv 24 and 29

what do you expect investigation 3 ace question 25 - 28

Click below for explanations for problems 25 - 28. I apologize for how long it took me to post these.
wdey_inv_3_prob_25

what do you expect investigation 4 ace questions 18 - 22

This reposting includes 14, and 16 - 22. You will need to hold the curser over the videos to see which one you would like to view.
wdye_inv_4_numb_18-20