I believe the answer you are looking for is 16
Answer:
120i
Step-by-step explanation:
;i × i = -1....so hence
4i × (-5i) = -20 i^2...which is -20(-1) = 20....
then you multiply with 6i
20(6i) = 120i
The answer look at photo.
.2+3.6=3.8 because all you do is add the .2 feet with 3.6 feet