Answer:
16
Step-by-step explanation:
If you add 16 to 20 then you get 36. twice of 36 is 72
Answer:
2x+30
Step-by-step explanation:
The formula for perimeter is
P = 2(l+w)
= 2(2/3 x+10 + 1/3 x+5)
= 2(2/3 x + 1/3 x+10+5)
= 2 (x+15)
Distribute
2x+30
No is not because 6/15 is 0.4
Negative because it is below sea level.