The third one is correct.....so go for it without hesitation
Answer:
No idea
Step-by-step explanation:
No idea for that either
10. is f 11. is a I dont know for 12 though
Answer:
Step-by-step explanation:
First you need to find the area then divide that by 14
(I) 
(II) 
Get
alone in equation (II)

Insert new equation (II) in equation (I)

Insert
in equation (II)
