Answer:
5L.
Step-by-step explanation:
This is because there are 1000 mL in an L so .4 + 2.5 + .65 + 1 = 4.55 which is then rounded up to 5L.
R - 10 = 18 - r
2r = 28
r = 14
If area is 36in² then multiply that by 6 as there are 6 faces
36 * 6 = 216in²
400 x .75 = 300
300 x .10 = 30
300 + 30 = 330
The final coat of the GoPro is 330!